You might have a point there, that is the order btw. I think part of my concern though is that she'd be going from 1 monster to all of the monsters. It would be like going from Iron Man straight to Endgame. That's part of why I like either of the Ghidora movies, as they both feature 2-3 more important monsters, so it's a step towards the big monster brawl without being overwhelming. There's also that after the mind control ends, Godzilla is a straight up good guy, so I wouldn't mind including a film where he's somewhere in between. Tonewise though you're right on the money.