There's still so much damage in this game
With tanks at least, them being able to burst you while having tank stats is so bad.
A good example is a Malphite ult'ing you with an AP build. The burst offers little to no counterplay due to how fast his ultimate is, the fact it's a knockup(the only CC you can't truly QSS), and the little cost he gets as a result. If a tank decides to go offbuild for damage, I don't mind but the fact they can still have 5K HP and that much damage reveals some of the cubersome features of League.