I used to like this subtle stuff when writing psionic powers.
From the training Xian had with Emma during the Utopia era it looked like she was starting to develop her powers towards TP, but I like it as only possession. Same as Moonstar having full blown TP abilities (hers were more confusing tho), I wouldn't like that. At a point even the Mastermind sisters looked more like telepaths than they should have.
Emma also used to say stuff about the brain/biochemicals sometimes, so I think that TP users or generally psichic users in the MU act on the brain while using their powers or are able to affect it physically if they want. I still like this take on Empath more than Fraction's (he even tried to read Emma's mind in that run, as a common TP), plus it gives a nice spin to Empathy as a power.