if their comment in true (linked in sibling comments), then it's really not damning. typically an embargo is ended when someone leaks early or it's being exploited in the wild.
so, if they saw evidence of exploits in the wild, it is not unusual at all to release the fix.
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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"