Frankly, I think it was a good decision, because even now, there isn't a good reason why Steve Trevor is there. Being Diana's love interest is not enough; it just devolves into making her a mirror image of Superman. He needs to play a role in the Wonder Woman mythos that springs thematically from the stories they're telling about her.
This lovelorn Trevor in the new 52 is just crap; they're just defining his character in terms of Diana---which is setting him up for failure. Needs something different.