Glaivier was specifically pulled up because of its popularity as a fan favorite class, which came directly from community feedback. Again, Destroyer was chosen because of the stagger skills and their usefulness with Valtan, which is “relevance of abilities and playstyle to other content,” as well as the new rework. Both of these things were stated directly in the paragraph you replied to.
The “drip feeding” class release cadence that folks are upset with =/= the order classes are released in and how they are chosen; these are separate topics