Usually it seems like the most egregious holds happen when the OL gets beat so bad they are trying to give the QB enough time to escape, if they actually stopped holding there’d probably be a lot more QB injuries. I think in the current state of the NFL, OL talent is outmatched by DL talent, and letting them get away with holding tips the scales a bit back so they’re more evenly matched.

I agree it’s total bullshit though, either call it every time or make it legal. Deal with the consequences. Letting the refs influence the game whenever they feel like it is wrong.