There are plenty of serious posts to be found if you look beyond the whine.
Those posts point out that it is in fact not preferable to have game balance in a state where it is statistically 10 times harder for a bottom tier spec to reach the leaderboard than it is for a top tier spec.
I sincerely hope your argument is not that this is fine and should remain unchanged.
Balance is about equality in opportunity.
It goes way deeper than “well some guys did it, so everything is fine, nothing to see, move along, l2p”.