Question regarding Killing Game/Slasher routes (spoilers ahead)

Hi all, first time posting here so tell me if I'm doing something wrong! Spoilers will be regarding other routes as well but I don't truthfully remember which other routes some of these events happened it, be warned!

I just wanted to hear people's opinions regarding some of the core circumstances that the cast found themselves in during the different killing game routes. 2 things that really bugged me were 1.) The fact that the cast for a lot of the route supposedly had no means of fighting back against people in the suits immune to hemoanima, and 2.) the fact that the characters somehow couldn't be revived due to too much blood loss.

For point 1: I understand the suit blocks hemoanima but like how does that work? Most of the characters have weapons that could be just used as a weapon without their hemoanima powers. Or, even if somehow them being infused just borks them 100%, just like...find or make a regular weapon (I know eventually they did with the crossbow and that the bees were also a factor but I feel like there were a kajillion ways this could've been solved a lot sooner)

Point 2 bothers me a lot more though: There have been so many instances where characters have survived so much more, and likely lost a lot more blood then what characters did in for example the slasher arc. Like when they literally cut takumi in half, threw him at the enemy, and then blew his upper half up with a flame bomb. They were able to reconstruct Takumi since his legs survived... How are we not able to rez some characters after some blood loss.

I ofc love this game and also haven't gotten past any of the story locks for that matter, so it's possible I either haven't learned something or am just missing/forgetting something important but this has been bothering me about these routes. Would love to hear other's thoughts!