Looks like not all 'Rocket Lake' CPU's will be supporting PCIE 4.O. And Intel leaving out some of the rest of the processors even though they are part of the 11th generation and thus stay in 3.0. A case of "Refresh" and an expression we all came to know so well.
If Intel does this, then I am not surprise at all. After all, they tend to slice and dice their product very finely to make consumers pay more for any additional features. For example, you want HT, sure pay extra $$$. You want more cache, sure just pay the extras. You need to overclock, no problem, just pay more of the K series processors + a Z series chipset motherboard. This is why I would prefer not to get an Intel product if possible.
Anyway, I struggle to find any meaning to all these extreme overclocking results. Sure it can run 6.9Ghz on liquid nitrogen, but so what? 99.99999% of the users are not going to be able to get this sorts of results. Moreover, it is not a sustainable result unless you have an unlimited amount of LN2 to maintain this overclock. This applies to both Intel and AMD chips by the way. The results may win some price money for the overclocking team, but pointless to everyday usage and for almost everyone.
Some people seem to find this purposeless endeavor entertaining. It's just like with sport, completely pointless and uninteresting for anyone not actually doing it.
Its the concept of world records. As a one off for the feat, it may make sense to help the team win some cash money or products from sponsors. But even for the team, the overclock is meaningless because they cannot sustain this sort of overclock in day to day usage.