I think that's up for debate.
I don't appreciate being "slowed down" by storms. Not because I play efficiently, but because I want to play the game and sitting there doing nothing isn't playing the game, or I have something I wanted to do, such as getting a badge and instead have to wait. Certainly some people are as you describe, but I have a feeling many who don't like this are like me. And if storms didn't cost me a lot of health to be out in them, I'd do so. I didn't say I had to go AFK because of storms... I was saying that you hide from storms (whether that's in a mine or in a POI) instead of enjoying them. Why make them look interesting if most players will hide somewhere (again, that doesn't mean AFK) instead of enjoying the view?
There are obviously exceptions, of course. If the debuff as severe as being killed by damage, then it's not any better. But there could be any number of other options that wouldn't keep me locked inside. Regarding broken legs, there is a good reason for going AFK for a lot of people. It's less about it not being efficient to play when you have a broken leg and more because almost anything you do will increase that timer and it'll just never end. Sure, you can be very careful and it'll go away, but it's very hard to do that if you want to clear a POI, or something. It's easier to let it end as soon as possible than to keep increasing the timer and making it last for hours instead of 20 minutes. For me, I'll still finish whatever I'm doing if I happen to break a leg, but afterwards, I'll go unload just because to use up the timer. I don't normally go AFK, though I have done that in the past if I was far from my base and didn't want to go back to it.
In any case, I never said a change would please everyone.
No change will please everyone, so I'd never suggest such a thing. My comment was about the storms basically being missed by a lot of players (most, perhaps, though I have no idea) because devs and mods and other players and the game itself with "seek shelter NOW" are all suggesting going inside or underground to avoid the storm entirely. I feel it's a missed opportunity for showing of the storms to people. As was pointed out by someone above, you could stand on a porch, assuming the game didn't decide to damage you there, and watch. Or you could run out and do something quickly and run back in (I went out to unload into my motorcycle). But you're basically stuck in one location unless you have other POI close enough to get to before dying. And in most cases, if you're stuck somewhere, you aren't watching the storm.
I'd rather have a storm that makes visibility very low and then have zombie spawns increased and have them coming to attack out of that, where I can't see them until they are really close. I'm not talking about horde numbers, but something you can reasonably fight on foot while still being a challenge. I'd be out in that storm all the time with something like that. And that's just one option.