It is hard to define generational talent statistically.
If you look at four timers, you are limited to the last 50 years and they are coming thicker and faster. The gap between four timers was 20, 8, 11, 2, 7, 1, and 0 tournaments.
If you look at 100%ers, there are 25 of them, which seems too much for generational in a 93 tournament span.
Narrowing it down to undefeated is a bit strange too. It used to be a lot more common to be undefeated. From the 30's to the 60's there were 9 undefeated wrestlers. And the gaps were 1, 0, 4, 8, 2, 9, 5, and 4 tournaments. The gap to The One We Were Promised was another 36 tournaments, and it has been 22 tournaments (with a 23rd - 26th guaranteed) since that magical moment.
So, I guess we are left with the eye test. Or maybe it is the GOAT conversation we had previously. My contention was that there is only ever one GOAT. That GOAT has to surpass the previous GOAT to be the GOAT. But that isn't really the same as generational, is it?