Virtually every single Linux user. I think what you're missing is how commonplace and straightforward it is for attackers to review these commits and how uncommon it is for someone to be on the receiving end of an embargo.

Most exploits are for N days, meaning that they're for vulnerabilities that have a patch out for them. Knowing that there's a patch is universally critical for all defenders.

For context, my company will be posting about a kernel (then) 0day one of our security researchers discovered. You can read other Linux kernel exploitation work we've done here: https://www.graplsecurity.com/blog