https://en.wikipedia.org/wiki/Feature_creep#Consequences
These people have so many ideas that would just add bloat to a game that thrives on its simplicity. I've read a lot of good ideas for features in the comments, but when they refer to new role ideas and list more than 1-2 new roles, it's simply too much. Adding so many roles takes away from the simplicity of the game and would also add a strain on the development of their codebase that already needs a huge overhaul. Then having to test the unit interactions of every convoluted role idea someone wants would be ridiculous.
I'm all for a couple new game modes with a few new roles or objectives, but these people are listing a role for every single person or (this is putting my aversion to excessive amounts of features aside) the roles people want are either OP or bad game design in some other way.