I have two trains of thought on this:
1. Unlikely, because does Anthony in place of Love actually make Cleveland better? I'd argue it makes them worse, because Love is a better floor-stretcher and might even be a better defender (I think Love is below average on defense, but Anthony might be worse) but even if it doesn't actually make them worse, it's not a needle-mover to swap one for the other. James seems to want to add, not replace.
2. That does have some plausibility. Cleveland could be reluctant to give up a player they have under contract for another three seasons for a guy who could leave after one--but James wouldn't care about that, since he himself might leave after one season, if Cleveland gets waxed by Golden State again.