Yeah but that wont happen. Plus at least Goto won a G1 and I think three New Japan Cups. Sanada got a title reign with EVIL. I want to believe SANADA will get his but Gedo makes it so hard. I'm not saying dude has to close out the dome but is a post G1 reign really that difficult to do while the guy is still young?
I mean, we all know Gedo likes to give people (not named Okada or a gaijin) pushes 2-3 years after the perfect moment to do it but the thing with SANADA is that by the time he would be "on Gedo schedule" to get a IWGP title push, this new star studded crop of Umino, Narita and Yoshida will start getting their big push too. And we also know how Gedo hates to do anything but "1 guy/Ace at the time" booking so unless he gets "lucky" with a bunch of people getting injured, he will end up as Goto.
You are right about Hirooki winning a bunch of stuff that SANADA hasn't been close of winning yet, but those were different times. Mutoh's return and surprisingly successful title run fukked Goto's momentum, he was on pace for getting a Makabe-like run at least (remember that brief time when New Japan promoted Naka/Tana/Makabe/Goto as the Four Musketeers?
), but the timing was never right and Gedo never saw him as someone worth scratching every plan to give him a run. SANADA might end up with the same timing problem unless something happens that forces Gedo's hand to open up the main event scene, injuries would be his best "bet".