there's literally no way for you to be wrong here:
if Mikey wins (highly unlikely), he probably stays at 147
if he loses (highly likely) then he will likely be battered and have a bad weight cut back to 135. then, he likely faces loma and we see the result.
you're trying to play this off as something it isn't: it was Mikey's bad choice. An admirable one, but a terrible choice that Loma had no control over. If Mikey gets battered then yeah, Loma should face him anyhow, because Mikey still has one title at 135 and its still a fight we want to see.
so really, it's boo hoo we didn't get to see the fight at its best because of Mikey's bad choice. That isn't loma's cowardice, its mikeys stupidity.