So, I think this interview went under the radar, but AfroSenju actually asked Yoshi-P about BLU mage.

https://www.twitch.tv/videos/1175497...ives&sort=time
Timestamp 5:38

So....no plan to change it, even though so many people dislike it.
Yoshida went through surprisingly no depth at all with his answer though, and said nothing that he didn't already say in the past, which I find a bit odd. Like he doesn't want to speak about it too much.