I think TFP understands the need to improve storms and hazards since they've already said they are working on improvements to them, so they are listening to people. Unfortunately, most comments don't give suggestions to make things better... just complaints. Admittedly, I've probably complained more about those than given suggestions as well.
As far as major updates go, now that we are at the end of development, the updates aren't going to feel very spectacular. Most new stuff is already done. We'll have bandits and a story. The story might be interesting for all of us who have wondered what the background to this might be, but it's a one-off. Once you've heard it once, it's not worth much anymore. And bandits may or may not be worth much in the end. I wouldn't expect significantly harder enemies out of them. They may have a few extra abilities and have guns, but they'll just be another regular enemy to kill. In the end, I don't think many people will really consider them game changing, even if they like them. And there will be those who don't like having them in the game. I may be one of those as I play this for zombie, not bandits. But I'll give it a fair chance before deciding. Still, that's all there is. Everything else added by 4.0 will just be "minor" things that people often don't even notice. After all, this update had a lot of stuff, but everyone is focused only on storms and hazards, so it seems worse than it really was. And I absolutely feel that as well.
I agree that the forum has become either hate or like with nothing in between (and people are getting very much into the idea of "us vs. them" about it. I think most people are really in the middle, where they like the idea but would like improvements. But instead of realizing that, everyone seems to want to pick sides. Oh well.
Never hurts to mention features as Lazman stated in another thread that he wouldn't mind a learn by doing system in conjunction with a perk system for the next game. Now whether there is any weight to that statement who knows.
Also the whole update was called Storms Brewing I can understand why people would be sad and looking at the
patch notes a large portion was dedicated to progression and storms both of which fell flatter than expected. Though not all is doom and gloom. A quick glance into the notes:

They added biome resources which was about as exciting as you might expect.

The new zombies have come under mixed review due to the aesthetics but I at least appreciate the diversity of cast in the game.

The new charged and infernal zombies are zombies with a color glow tint and while I enjoy the increased difficulty I wouldn't think the development time on that would be high.

Zombies crawling is just another attempt to make bases more difficult to manage and add little else as far as I have seen. I would have appreciated development time spent elsewhere if I am being honest.

I haven't noticed any roaming POI zombies yet, but if/when I do I will enjoy that - so that is a good change.

The performance changes are good as well though the game was never taxing on my PC but I appreciate the effort there though I dislike having more remnant POIs in my world.

The skill system rebalance is just another page in TFP desire to rework the skill system for the 100th time. I am neither negative or positive on the changes to the system, but I do like the Sledgehammer books.

The tree overhaul is nice? I didn't really notice tbh. The burnt forest and wasteland have always been more boring sceneries for me due to lack of vegetation variety or any kind of scenery variety for that matter.

More POIs are nice and I am assuming some of those developers are specific to that area of expertise but it would be nice to focus more on things like temperature or proper progression than even more POIs even though they are amazing looking.

The RWG changes I didn't notice much. Still a lot of height issues with POIs and terrain not matching and roads going 90 degrees up a steep cliff.

The animation changes with cans, steroids, etc is nice. Adds polish to the game so won't argue with it.

New quest markers. Personally I just prefer the yellow exclamation mark. The new icons don't do a whole lot unless you are an idiot and forget which quest you are on and are too lazy to look at your quest log. A waste of development time for me personally.

Crossplay is a good change for many I suppose. So kudos there.

The new sound system has gone completely unnoticed by me until I read the patch notes, but a good change I suppose.

Spawning near friends. I have no friends so I don't know.
Overall as you can see there are a good number of thumbs up - this means good things so the update wasn't terrible as a whole. I think the naming convention and 2.0 moniker made it seem like it would be more amazing than it was. If this was a 1.9 update then I don't think it would have been as bad oddly enough.