Really? Have we had a revolution in homomorphic encryption such that it can be used for anything other than 1-million-times-slower proofs-of-concept? I know IB

Really? Have we had a revolution in homomorphic encryption such that it can be used for anything other than 1-million-times-slower proofs-of-concept? I know IBM has released something lately, but given the source.. Does anyone use HE for the type of ML application you are describing?