Hard CCs in LoL/MOBAs

Is there really a need for the massive amount of hard CC that exists in MOBAs?

Isn't the concept itself borderline anti-fun considering you're literally NOT playing the game in some cases (stun and knock up). Sure there are a few options for counter play, such as cleanse and quicksilver, against some CC mechanics, but these options are already notably ineffective vs. knock ups and have limited effectiveness vs. chain CC.

The point of the thread is not to say hard CC is op, but that it is limiting the game's entertainment value. There has already been a shift away from silences (Talon, LeBlanc...) to promote counter play options, but there are still plenty of silences around that cripple spell casting champions altogether and there are also binds which act as silences for movement skills, even though many of those skills are significant sources of damage and utility for champions.

Mechanics like the 99% slow that was introduced for Talon could be utilized in place of some such hard CC mechanics to avoid situations where players are severely crippled in terms of play options. Of course there is the concern that champions who rely on short single target stuns or similar effects will become less viable, but I'm not even saying we should take these mechanics out per say. Rather, the primary concern is when players are chained into multiple hard CCs (chain stuns, knock ups, etc.). For this problem I wonder why there isn't some form of natural tenacity that builds upon receiving many CC over a short duration (chain CC). Let's say you got hit by a stun or knock up, then the next one would be 25 or so percent shorter (cumulative). Champions who rely on their stuns to survive, particularly in duels, would not see much change, but highly toxic team compositions that rely on keeping multiple enemies unable to play for several seconds would be somewhat nerfed.

Does anyone really want to be on the receiving end of a 5+ second disable chain? Personally makes me want to avoid ARAM altogether and split push/avoid team fights if possible in standard 5v5.