There might be reasons for everything, but all those reasons soon become irrelevant when you try to merge a code that also changed the project file. Have fun.

There might be reasons for everything, but all those reasons soon become irrelevant when you try to merge a code that also changed the project file. Have fun. Xcode project generators at least solve this somehow, but they'll always play the chicken & egg game with upstream, and something won't work properly or needs nasty hacks.