Mojo Ring is simply most important craft to unlock for events, I easily make 6x more mojo after unlocking it vs before that. So I suggest having fixed position for its unlock, like you made click/reward/idle crafts as 1st 2nd and 3rd, so should be with MR being 4th, or 10th, or even 20th. Having to grind my ass to unlock MR as 25th+ craft is just unreasonable and not fun at all.