The real question, in my line of thinking at least, is, are BLM even expected to frequently use Enochian and keep it up for longer parts of encounters?

Generally I agree with all of that, I've struggled a lot to get the new abilities under control, I agree that it's "super clunky" and sometimes infuriating. But look at fight design for a moment, there clearly are phases that want you move, others want you to DPS. Ex trials, Alex, all have that. With that in mind, 3.0 ability design might just be, keep it up while you can but don't expect to be able to keep it rolling forever. Losing your buffs and returning to 2.0 rotation might be intended, keeping up burst is seen as a damage increase by developers. This would explain why there is nothing done - everything "works as intended" for SE.

Now I don't say that's my personal opinion. I bite my keyboard everytime buffs runs out too. It's just that, we might simply misunderstand the developer's intention with the current state of BLM.