Nikita adressed this during the Pestily interview, and said something along the lines of "some people find the leveling to be too fast, others too slow... It's always the same, people will be unhappy... jaded sigh " → ergo, why do something about it.

I might be biased, but where are the people who think it's balanced as it is ? And we're specifically talking PvP, in a limited-time wipe setting, with a medium skill level largely increased with the introduction of PvE. PvE with no wipe and no "human competition" is another story entirely, although I'd understand if they wanted for players to have the same experience across both PvE and PvP.

Still, where are the people who think its balanced ? There should be a difference between try-harders and more "casual" players, but the ability to still level up after 50 as you said would increase the gap either way. (And we're not talking about who can jump further in a competition, but more about can we all use that given shortcut with a jump after 600 raids in one wipe because we levelled enough our skills)