I think Overwatch is running through a limbo stage right now. The heroes don't feel as unique as they did during the beta or at launch. This only ever occurred to me when I played the revampedMercy for a couple hours and couldn't find interest in playing any of the other heroes anymore.
I've gone through periods of time where I've been bored of Overwatch and this doesn't feel like that. I crave what I think Overwatch is and when I go to play it I'm underwhelmed by how the characters feel now.
I'm looking to see if anyone feels the same way/if anyone knows what causes this feeling?