The whole point of this thread is to discuss/explore/reveal/understand how Apple is making iOS slower in responsiveness where input-blocking is concerned. Whether the masses are bothered significantly, little or none, is hard or impossible to know for sure.
But facts are facts, and iOS 8.4.1 had better responsiveness in cases where input-blocking is concerned, thats 100% a fact, this video doesn't lie,
iOS9/iOS10 is consistently a second or so slower for each tap interaction when this type of 'edit' scenario comes up for example: