Not a fan of this particular ship, more of a Rosaria x Barbara shipper myself, but I can see the appeal of it for sure. Rosaria just makes a great Batwoman
I guess people just like Superconduct a lot. Not that I'm complaining, I like the dynamics they can have, one hating gods and adepti, while the other loves Rex Lapis. It has that Enemies to Friends to Lovers trope written all over it.
Whenever I see Lumine x Amber, I like to imagine the Lumine is the villainous Lumine if Aether's the MC. I don't do it for any other Lumine ship, just this one. Don't know why, but it adds a lot of awesome dynamics