If they're gonna unilaterally release an exploit patch 6 hours before an agreed upon embargo for a CVSS 9.2 that affects like ~70% of the internet then they better have reams of evidence showing this was being exploited in a widespread manner and not just "we saw a dancing anime girl edit of a theoretical exploit on twitter, so we had to release it to the world"
It's the age of LLMs. Exploits go from theoretical to real fairly quickly. PHP's open source, it's not impossible to conceive of someone seeing that video, getting the general idea of what to do, and working the rest out with a decent model.
And evidence they at least gave a heads up to everyone in on the embargo, eg "I have to release you all have 1 hour to get on board".
There is a MASSIVE difference between a small number of people exploiting in the wild, and a few hours after a release a bazillion script kiddies doing so. The move to release and break an embargo was childish, absurd, self-serving, and lacking in all common sense. Not to mention, breaking trust.
I agree with those in this thread who say, never going to do business with them. Ever.