Well, I have to say, what in DayZ-forums is also often said.
Too much realism can destroy the fun.
Because if you want 100% realism, you also must find clothes and shoes in the right sizes, brush your teeth,
rest after sprinting a longer time, you can randomly receive an "ankle sprain" when jumping and climbing etc. etc.
So sometimes reality must be left out to make the game enjoyable, balanced and fun for everyone.