I chose BRD for swift gameplay, if I wanted to cast I would have chosen a Mage.

[Vespar]

Snip

Actually we do still have to worry about some of this now.
If we're mid-cast on an action and the mob dies or moves past us, it still breaks our casts too.

As for the Astral/Umbral/OoM interrupt thing, well thats always been a BLM thing. You kind of just learn how to roll with it. But its also been there FROM DAY ONE. It wasnt just something that started being a thing once you hit level 50+....
Bard has to pretty much relearn how to play entirely (especially if they've never played a caster class).

And in regards to the person who said WM is toggle-able. It is to an extent, its instant to put it on, but you must wait the 15sec recast time in order to toggle it off. So at times that can be a pain having to wait for the cooldown to end to be able to take it off. Its not like cleric stance where I can just turn it off whenever I want, and wait for its recast to come up again. Gauss Barrell is also the same in this regard.