How is having healing powers copying another character? Healing powers are nothing new in the world of fiction, so saying Eri copies Josuke for having time-related healing powers is like saying Genos is copying Androids 17 and 18 for being a cyborg or All Might is copying Saitama for being able to punch things with overwhelming results.

Chill guys, this is just a joke and you don't need to discuss if both character's powers are relatable at all.