I agree, there was absolutely no need to bring up Emma because Emma is the kind of character who we expect to use her powers in morally ambiguous ways. There is no double standard, there are simply distinct characterizations for distinct characters. I personally like seeing Jean, Betsy, and the Professor "slip" and use their powers in similar ways (from time to time, when they feel like the situation calls for it vs. regularly like Emma because she doesn't care about the violation, that's the difference.) Whether Jean can justify what she -sometimes- does with her powers or not doesn't change the fact that she's "violating" someone. She's just not usually the person you'd expect that from. In any case there is precedent for it and it makes her more layered. If you had psychic powers it's likely that you'd end up slipping from time to time even if you tried to play it straight for the most part.
Don't try to weaponize Jean against Emma or her fans (or vice versa), it always comes off childish, petty, and invoking the Madonna/Wh*re complex it's high time society moved beyond.