I don't see the issue though, like if you want a Monero only wallet with Cake UX there's monero.com wallet, and many others like Monerujo or Monfluo. I like Monfluo the best I find it very performant.
I'd rather Cake have the least shitty but actually usable by normies implementation of the terrible Lightning protocol than no implementation.
Their claim to fame is being the first iOS Monero wallet. It's basically been all about bringing the best privacy possible to the worst possible environments to where normies can actually use it.