Idk if any of you yanks already said this yet, but Tyler could be easily making this up.
He said his album Wolf was the worst thing on the planet for weeks on Twitter and... it wasn't.
He tried to lower peoples expectations so they wouldn't be disappointing if the album didn't reach their unbelievable goals. It would make sense with MMLP 2 because people have been freaking out just because his hair's blonde again, but it would be weird to do it to someone elses album so I really don't know.