Nothing is standard in the security researcher world. I have no interest in PHP nor Chainguard, but I have a greater interest. PHP folks can deflect the blame to Chainguard, but really, it's the PHP team who mishandled this from years ago. There were likely other disclosures or discoveries of this, if Amazon were starting to see this probed on October 17. Heck, OpenAI found this at nearly the same time as the original POC disclosure.