Mo Bitar said something like "Meta's LLM is the one you use if you accidentially hit the wrong button in WhatsApp. Its user base is fat-finger phone users."

Understood - they're just doing other things. Maybe custom ad rewriting for a target audience or some kind of deep analytics insight into user behavior or translations that optimizes for maximizing purchasing habits over literary accuracy ... I'm just saying their incentives are elsewhere and maybe Muse is serving them well.

I mean that is the smart move here. Focus the model on optimizing the core business. For Meta, that's not coding tools.