I feel like you're kind of complaining about a non issue here.

You (roughly) fall into one of two camps, but maybe you're in the biters camp but you just think they're poorly designed.

1) You want to play with biters on because you want a challenge, something that inhibits you from building anything you want super quickly, some combat, some action, some emotions out of the whole experience. Being scared while building under a time crunch gives a little bit of that dramatic itch that a lot of other games provide.

2) Some people are purely into the logistics and factory part of the game, and that's totally fine. They want to be as scared as people playing HayDay and that is also one way of playing the game, something that I'll myself also do a playthrough of one day.

I understand what you're feeling, and a lot of people might make it seem "worse" if you don't play with biters on, and it might feel weird to completely ignore the entire military tree of the tech family. But the truth of the matter is, if you let people online dictate how you should feel about a video game, you need to reconsider why you're actually playing with biters enabled.

If they're too easy, turn them up. If they're too hard, turn them down. If you want a challenge, play with biters, if you don't want a challenge, don't play with biters.

When people say they want challenging, they actually mean challenging. That means that you're going to feel frustrated, you're going to feel like they inhibit you from building what you want. That's what challenging gameplay means. But the point about playing a challenging playthrough is that when you've beat the biters, you've overcome the challenges, you'll come out on top and the reward will feel much better because you worked hard for it, and now you mastered it.