I don't think Middleton is creative and skilful, but that's an aside.
I think that's valid, but Middleton won't be here in years to come if he doesn't get games now. He won't get that here, this season. He's not good enough yet.
Ojo can play a part now, presumably, gives us something different, and we don't have to worry about developing him per se.
I don't see the issue -- although, I appreciate the sentiment.
To be honest, I don't think the transfers are related at all. We're not replacing one with the other. Middleton should go out on loan--should have last season, IMO--and we needed to bring in another creative option, although I would still hope to see a quality #10 signed.