The mentor system needs to be reevaulated.

[Aethaeryn]

Despite the continual feedback that mentor system is not generally working as intended in NA/EU up until now, YoshiP has maintained the position of captain of the sinking ship

Or maybe it's because Yoshida understands that only a tiny fraction of players use the forums or reddit, and people are far more likely to come complain about bad experiences than come here to praise the good ones. If there were really so many bad mentors that the system is doing more bad than good, I'm sure they would try to find a way to change things.