1. You don't actually have her make him do anything, she only dictates who he targets.
2. He has an internet connection, that's not remotely the same thing as interfacing with a distant device thanks to his powers. That's like saying that I'm reaching your computer because you're looking at this message.
3. As I noted, Doctor Who explicitly has telepathy and telekinesis
run on the same psychic energy, which is what the helmet amplifies. Since Emma already has access to her telepathic potential, there's no reason she wouldn't be able to use it this way.
4. I'd like proof of someone ringing a person that they don't know the location of.
Of course, these points are all rather academic anyway. With nothing stopping Captain Marvel's charge, Jean is dead before she can do much. With nothing stopping Paige, Ares doesn't have the ring. And the majority of your team gets roasted by Charlie as they try to get their first moves off (those who even have a first move planned anyway) even if we ignore those two facts.