Greg K-H is a fully autonomous human being and he doesn’t work for the author of tfa. It sucks that we live in a world where nation states try to put exploits into the linux kernel and other foss projects but we very much do live in that world. It sucks that that means the author doesn’t get to contribute to the Linux kernel because their government (who they presumably have little control over) are very active in doing that, but that too is a fact of life.
Either way Greg K-H doesn’t owe you or me or the author anything and people need to stop being so entitled about free software.