Comes to mind also how XCom 2 insisted on turn limits,
I mean I would argue sure they were a bit too tight and I'm 100% down for increasing them but Xcom (2013) did have a problem with overwatch creep. Where people were legitimately optimizing the fun out of the game. Time limits force you to make less than optimal decisions where it works very well with the setting of Xcom 2 where you are a rebellion force, you don't have the luxury of taking things at your pace. You need to strike and get out before a larger response force come in to take you out. The only negative to the turn limits is you being forced to trigger pods early and pods waking up give them a free move action.