Uhhh.... right. If a project pushes out updates automatically then all the security sites ignore any security advisories regarding that software, and news sites like LWN.net decline to report on them. Is that *really* the case that you want to argue?
Of course, I'm assuming, just for the sake of argument, that what you claim about WebKit-based browsers pushing out security updates against the users' will was true.
The lengths to which some die-hard Firefox fans will go... the logical contortions they are willing to accept... to "prove" that the endless stream of security vulnerabilities in Firefox is really a good thing is beyond just worrisome. It's out and out scary.
I doubt that there is a transgression that Mozilla Corp could commit, short of maybe dissing the GPL, that would cause some of the more ardent fans to even think critically about the situation.