You may argue that a Love/Wiggins trade isn't the right long-term move; of course, it will be years before any such prognostications can actually be judged for accuracy.
However, it is almost certainly the right short-term move. Unless Wiggins has a monstrous rookie season (which I find unlikely, but I am the conductor of the "Wiggins will be a bust" train, so I am of course biased), the Cavs will undoubtably be better for this coming season and probably the season thereafter with Kevin Love. Of course, we won't be able to judge this prediction for another year, either.
So ... who the heck knows? This could be a win-win situation for both teams (Cleveland wins a title, Minny gets a future superstar), this could be a lose-lose situation for both teams (Cleveland underperforms, Wiggins is a bust), or it could be a win-lose situation where only one team wins. Literally every outcome is equally possible at this point; regardless of what you think of Wiggins' talent, he is still a completely unknown quantity at the NBA level, plain and simple. And this will be the first time we see Love in a context other than those terrible, terrible T-Wolves teams.
Either way, this is going to be wild and fun to watch.