Ok mr back seat game designer. TFP unanimously loves the new farming system, and that is a first. Farming is .000001% of the game, who cares? The game is way harder than its ever been, so us lowering the biome zombie count is taken out of content. Since when are a few guys in the biomes a threat? All they do is lower performance and nag at you when you are trying to clear a poi you get sandwiched by 20 guys that followed you for 5 miles. Now its only 10 guys sandwiching you. The game is harder now for undisclosed reasons, so you'll probably thank us for these changes when your getting 60fps and having fun for the first time in 5 years.
You know what I used to do if I wanted a nice box around my garden rows? I got off my ass and built them myself.
As far as the biome spawns go, MM it seems like as far as you are concerned the main focus of the game is going from POI to POI for loot and horde night. You're treating everything else like an afterthought. Those "nuisance" biome zombies can add a lot of emergent gameplay in quite a few scenarios that invoke the player to make strategic risk vs. reward decisions.
• Shot and followed a deer, now there are zombies where it fell. It's getting dark. Do I burn daylight trying fight my way through to butcher it or cut my losses and head home?
• If I keep going through these guys, I'm going to be leading a mini-horde toward my base and I don't want that. Should I fight them or work on losing them?
• I could take a shortcut through the burning forest but I'm hurt and have no healing supplies. I'm worried about vultures. Do I take the long way around for safety or do I take the chance?
Those are just a couple off of the top of my head, but little situations like that are really the heart and soul of a game like this, and what really drive replay-ability.
Same thing with farming.
Or getting water.
Or crafting complex items that need rarer materials.
They all gave you a reason to GOYA to do stuff in order to complete the open world goals. You set them because you want to get them done, not because text pops up in a corner that says YOU MUST DO X and here is a checklist. (Getting your rudimentary farm up and eventually making it look good, filling a cistern at your base so you have water handy, finding that damned engine that you need.)
Those are all details that I feel like you personally are not concerned with because they don't interest you personally. But for a good portion of your playerbase, those small details and the emergent situations that are derived from them are what keeps them, myself included, playing.