Who is the culprit behind blackpink lack of music yg or teddy ?

Why not both? Teddy has one artist under his label and she comes back as often as BP so..

YG for sure

Teddy said it himself!

YG is the company and controls the girls careers. If they think 8 songs after a two year break is acceptable is mind boggling. That roughly 700 days to prepare for BP comeback and the music for BP. Again for 8 songs

They both gatekeeping

YG, they're the ones who hired Teddy. All he does is do his job

Teddy. Somi does not have anymore music than Blackpink and teddy have his own laber for her.

The fans

Both. They follow the same playbook, but Teddy is even more of a perfectionist on top of the starvation strategy.

How would Teddy feel if BP were to have their most significant hit without his name attached to it? That should answer your question to who the biggest culprit is at this stage in their careers.