I'm not going to get into debates about Gavin, we don't need more of this thread to be about Gavin.
With respect the sort of arguments you are making are exactly the sort of PR that would come from Intel, of course Intel are not going to say to people "our CPU's do 5Ghz" what they do instead is send reviewers chips they predetermined will do at least 5Ghz and say to them "this CPU's will do at least 5Ghz" that then puts the reviewer under pressure to get it to at least 5Ghz, which is why they use the best coolers available to them and run them at 90c+, because if they can't get them to 5Ghz+ then they might fall out of favour with Intel.
Intel nor AMD officially support overclocking at all, Intel make it clear it voids warranty, AMD have put out information on overclocking best practices, Intel designate some of their CPU's with a K to communicate overclockability.
That is marketing, its just done is a way, to use an Americanism "To cover their ass"
Now that's one thing, and its always been an understood and somewhat ignored or 'let it be' unwritten contract that reviewers are sent the best stuff to show it in the best light, no one is cynical about AMD or Intel for doing that, its just marketing, nothing personal.
But when you have a reviewer, like Linus and Steve steeping into the fold treating us like fools and actually trying to convince us that "oh no, not true, we ain't sent the best stuff, look here are 10 CPU a named retailer sent us and they all clock to over 5Ghz out of the box on AIO coolers, see..." that's them pushing it from a none issue into them marketing BS.
I Don't think Intel are behind this, i just think some reviewers like spoilt brats take it personally when they are told "actually its because you're sent all the best stuff"