Sure, in a GAAS. And there's at least a nominal hat tip towards that in the minority staffing being left on the core game.
They've very obviously made the difficult decision to let the GAAS aspect suffer to allow the full fat DLC to have the best possible chance of success. The 'suffering in the short term' is a deliberate act, with a deliberate pay off in mind.
The reason for this decision is fairly obvious. Seasons proved themselves to be sub-optimal, both from a dev perspective and from a consumer one. (Personally I think they're right, in the long term, to change tack).
I agree that there are plenty of 'bad practices' inherent in the above missteps, and we're still feeling the negative repercussions of some of them. (One of which was trying to do too much from the off: Launch a game with multiplayer + single player content & functionality, with dripfeed GAAS content drops, while working on periodic core expansions, all in a giant proc gen game build. It was too much).
Something had to take a hit. The GAAS aspect has.
You're seeing it as some weird contagion though. That because the understaffed GAAS branch is doing badly that the prioritised branch will also do badly. That's hugely simplistic, and ignores massive swathes of context. (It doesn't help that you're also trying to reinvent history to make your case. The Beyond Season clearly wasn't the work of the whole dev staff, as the giant hole in the middle of it, corresponding with the start of full production on the PDLC, clearly telegraphs. Stating that company declarations on these points are invalid just because the staff member in question has changed roles is beyond perverse...)
Well, lets hope with the New Era that:
It delivers something worthwhile
Is delivered whole and not yet another placeholder for something else down the line
Once New Era becomes GAAS its not abandoned to rot
The time spent in development rounds out the entire game and not just bolt on another wonky offshoot.
In the meantime ED has tremendous technical issues as well as long standing inconsistencies and balance problems.
This, developing 'blind' and not testing enough to ensure what FD thinks works actually works in practice is another giant problem.