Absolutely, their cheating doesn't reflect well either. One could argue that they both felt their relationship was essentially ending, but it still would have been better to have that discussion and end things if needed before any action with MC.
There are a few things that make it a bit different in my mind, however. At this point in the story (at least on a MJ path, not sure about others), they've both expressed remorse and didn't deny cheating when confronted about it. People make mistakes, and Josy and Maya show they want to improve and move past that. In short, they're on their "redemption arc".
Compare this to Tommy, who at this point is still lying about it, doesn't express remorse, and seems to have no interest in changing his behavior. He's clearly on a downward trajectory and has been for a while. There's maybe a path for redemption there, but he hasn't shown a significant desire to walk it.
