It's implausible that fine-tuning of a premier model would have anywhere near that turn around time. Even if they wanted to and had no qualms doing so, it's not happening anywhere near that fast.
Yeah it is lol. You don't just train your model on whatever you like when you're expected to serve it. They're are a host of problems with doing that. The idea that they trained on this obscure benchmark released about the day of is actually very silly.