Depending on the gatcha itself (if its the one that gets you a free ticket as bonus) I might give it a go. That theory of your I mean.
Should probably do the 3* mumbo jumbo from normal, but lately when I tried its nigh impossible for me. Though I managed to land a lot of 3* in a row a lot back in the day, lately it seems like not even the shitty RNG is with me. Meh we´ll see.
As for me - If I get Cattleya for my main team to replace Lavender I will be more than happy. (Not exactly happy with Daisy, should have gone with Dianthus, sigh, keep regretting it even now).
Also checking on DMM - Bloomed Mei is confirmed. My Waifu gets even better, not sure what her ability is but wont complain, as she notices that her clothes have exploded (first Evo art) and gets a new cute costume (meaning - bey bey slutty looks !)