To instantly start mining blocks that contain uneconomic data / spam, sends the exact wrong message. Sort of makes it clear that lots of the interest for increasing OP_RETURN comes from pool operators who hope to increase mining fees.
Somebody only wants to keep bitcoiners busy with these crap speculations and theories.
Is quite simple: keep them divided and focused on things that don't matter, and not look towards what really matter: adoption and use as money.
It's all a psyop and distraction. I pass. I consider it noise.