Northern Sun
Member
I'm not sure I can buy Dick telling him to stay out of it since he got them involved to begin with. Though I could certainly see Artemis asking Wally to stay out of it for a multiple of reasons, and he'd be far more likely to listen to her than Dick considering the situation.
He could be worried that Wally would blow Artemis' cover if they met in the field, though that obviously implies Dick doesn't trust Wally, either for fears of him being too rusty to make it convincing or a lack of faith in Wally's professionalism. Artemis telling him is plausible to, someone has to take care of the dog after all.
I don't particularly have much invested in the idea, but for the moment I'd like to think Wally has some sort of pragmatic reason for staying out of it.