The first Revelations is amazing, best game on 3DS for me. It's stupid Capcom didn't release the sequel on 3DS, I don't believe for a second that it couldn't have run on the system, since the sequel looks like crap compared to the original.
I got a Vita for Uncharted, and also got Revelations 2 on it (the only two games I have for Vita), because I felt the game should be experienced as a handheld game. Haven't played that much of it yet, only the first 'episode', but it's clear it's a pretty big step-down from the original. I agree with SegataSanshiro's analogy; it's The Lion King 2 to Revelations' The Lion King. It probably just that it had like no budget.
Lastly, why is the second game for Switch just a download voucher? With how they handled that game then and now it's really like Capcom just wants the second game to fail.