Please re-evaluate the difficulty of previous endgame content on the DF

[LetBloodline]

T6 feels for many ppl easier, cause they've learned to play toghether in T5.

Try out T6 with a PUG and feel the difference

This one. And probably your comparison is the learning of T6 compared to the learning of T5 pre-nerf (not talking of first echo but the further nerf they did later to mecanics).
In that case T5 is indeed harder to learn. But now not anymore, you literally have only 2 mecanics to watch out for, divebombs and twisters (easied up more). All the other mecanics and dps checks are pretty much nullified. There is no way T6 is easier then the T5 we have now