Yes, it's a reasonable trade, but if Cleveland were really in the drivers seat here, they wouldn't have put Wiggins up after all this time. They are desperate, and even if they're only testing the waters, they're opening themselves and the rest of the league to the idea that Andrew Wiggins is a commodity that they're willing to get rid of at the right price even though he is, ironically, touted as the "next LeBron James" given the time he needs to develop. I don't think the first LeBron James should want to give him up if there's the potential that when he's 35 and his hair is completely gone, he'll be able to put a little bit of weight on the shoulders of Wiggins and Irving instead of putting it all on his own, which he is essentially doing by returning to Cleveland.
Anthony Bennett, on the other hand, is still a #1 pick, and while he's not Wiggins, he wouldn't have dropped out of the top 5 last year and he's going to be a good player. Throw in someone like Tristan Thompson and you've got yourself a pretty good deal, and if it comes down to it, Dion Waiters is more than expendable. Those are the three prospects they should be trying to trade, because you're right, Minnesota has no leverage. Now that the Cavs are exploring the idea of dealing Wiggins, they're giving the Wolves the idea that they're willing to give him up even when it's not yet clear that they have to in order to get him.