I agree mostly with the video. God, now I'm agreeing with streamers...well, stopped clocks are right at least once or twice a day.
The point about using the world is a good one. If you stipulate the game has a couple of components for PVE: 1) the world & 2) instanced dungeons, islands, and raids, the design feels upside down. Too much of the latter, not enough of the former.
This was a deliberate choice of the developers including Ion "Yep, leveling is quick and easy and won't delay you from raiding" Hazzikostas. I think it's perhaps the correct choice for a standalone game as they seem to now design expansions but exactly the dead wrong choice for an MMO that supposedly has a persistent world. Over the very long run the game is healthier for having that world where characters supposedly live and travel to adventures.