The _real_ point of an embargo is to allow those businesses participating in the embargo to save face. The embargo does not serve the user. Theo could have specifed that his patch was simply good practice, which is true. He did not advertise the reason for the patch either.
Besides, patching one system does not magically make the others vulnerable. They were already vulnerable.
On all counts, your argument has no leg to stand on, and yet we continue to allow this horseshit that vendors release vuln information like it's a fucking media event with previews and trailers.
Stop encouraging the koolaid-drinking.