[Hitton]

As I said, I don't really know much about, but this is bullshit.

RSA lacks perfect forward secrecy is same as saying that ECDH lacks perfect forward secrecy. Both is true, and both can be used with ephemeral keys, which provide forward secrecy to both (and therefore must use other way to authenticate). Claiming that it's somehow RSA's problem while willfully pretending that it doesn't concern elliptic curve cryptography is very dishonest.