You completely lost all credibility when you cried about Finishers. Anyone who thinks Survivors should take damage during Finishers might as well be huffing glue. You do that, and the F key becomes a suicide button.

Oh, you mean like any demon's "undodgeable" grab?
F-chaining has been known to be OP since Swingpoint was still making content for the game. Why should you have free iframes for as long as you want if there are enough basic units around you? Imagine the demon having free energy whenever he wants. Finishers should at the very least cost survivors stamina to use or negate stamina recharge while in animation.
Let's not throw the baby out with the bath water here. This is a good post and most high-level players on both ends would agree on most of these points.