To those who say Adrian should only write for Maiden, the obvious question is why haven't Maiden recorded (to our knowledge) an album since 2019, albeit not released till 2021? Steve said last year there were no plans.
Adrian has released two and a half albums now with Richie, Bruce released the Mandrake Project and Steve is apparently still writing the 3rd BL album.
I think we would all prefer a new Maiden album, but given the lack of one, I don't think you can blame any of them for keeping busy. And if they made an album which was a direct rip off of Maiden would that make anyone happy anyway? So yeah making records with different people and trying different things will always provoke a mixed reaction, and that is fine.
I find it hard to believe every Beatles fan is a huge fan of Ringos solo work for instance,,,,,