If Fedor or Anderson could, they would bounce back up right away if the sub was not right there. You really think Anderson was not trying to get back up for 4 and a half rounds VS Cheal? Or Fedor VS Big Foot? Just because they sometimes get back to their feet when taken down does not mean they are good at it.
Jones, GSP, and Aldo stuff almost every TD. If their TDD sucked, maybe they would have more subs off their back. Aldo certainly has the pedigree for it. If Anderson had Aldo like TDD, you probably wouldn't see any subs off his back
I don't understand your point. The arguement isn't, "who is better at more skill sets", it was who is the most well-rounded. Meaning who has shown to be good at all aspects. I acknowledged that GSP, Jones, and Aldo have elite TDD, that doesn't mean Fedor's and Silva's are none existent. Neither does their bad performances mean they aren't well-rounded.
Does Silva having ridiculously elite striking mean none of the others are good strikers? Does Fedor having the nastiest GnP in the history of the sport mean none of the others have good GnP? No.
Does Aldo and GSP getting submitted mean they have no submission skills? Does them getting knockedout mean they have no striking skills? Does Jones getting beat up by Gus mean he has bad striking? No.
Fedor and Silva have proven to be able to stuff TDs against good wrestlers and have proven to be able to get up off their back against grapplers(again not as well as Jones, Aldo, or GSP, but that's not the question). Which means, they are at least good enough to do so.
Jones, Aldo, and GSP have never shown any offensive abilities off their back. That doesn't mean Fedor and Silva are better, just that they have proven to be, at least, good at all aspects(well-rounded), while the others have failed to prove their competence in one aspect.
It's nothing to get up in arms about. As I said, it doesn't mean they're better. IMO, GSP is the GOAT, Aldo is a top 5-10 all-time fighter, and Jones is the best fighter, combination of physical attributes/advantages and skillset, I've ever seen. They have just not proven to be completely well-rounded fighter.