Depends.
Pretty sure in SWoToR it was just an easy mode raid. I don’t think it had a “queue” (at least when I played), but it was just an easy version of the raid.
Alternatively Blizzard could make it so that not every major plot point ends in a raid…but you can’t have it both ways.
Can’t force the story to end in a raid every time, then be confused why people want their story mode raids to be accessible (i.e not waiting for months or watching it on youtube - which i guess most of the story is given outside of game in books anyways so maybe it is intended?).
Does that necessitate a solo mode? Maybe? I’ve always thought 20 was too many and LFR should be 10 man.