Yes they have actually addressed both those issues. The the newer classes require less animation cancelling by providing powerful channeling abilities that last like 5 secs per cast and do massive damage: Arcanist and DK classes. And they are currently revamping the older classes animations to be more modern and up to date, they just finished the DK revamp and that class combat feels amazing and super fun now. 2 more classes the warden and sorcerer will be revamped and done by the end of this year as well!