Not that I really feel comfortable challenging you on anything crypto related, but it seems to me that Ed25519 is superior to RSA in every conceivable way even for general-purpose computing environments. It's more performant, easier to generate keys, the signatures are shorter, and there are fewer ways to shoot yourself in the foot (e.g. no padding issues). Is there a reason you don't actively advocate it other than the fact that it's not widely used?
Elliptic curves have had fewer decades of cryptographic analysis. There's a lot of structure still being explored and I'm not so confident that nobody will ever find a way to exploit it as I am with integer factorization.
