Cavs started playing much better after losing Love. It improved their defense leaps and bounds. In the first round, the Cavs were having trouble simply beating us.
It's not even like Love would have been lighting up the Warriors anyway. Barnes/Iggy/Green would probably have been better off matching up with a perimeter player like Love anyway rather than dealing with Mosgov and Thompson at the rim.
And Iguodala was playing LeBron completely 1 on 1. LeBron had do it all himself and couldn't. He couldn't just head towards the paint and get people open like he usually does. Love would have had to work for his own buckets, and all that would have done is take the ball out of the best player in the world's hands.
Iggy 1000% deserved Finals MVP for doing what no other player has done in the playoffs (aside from maybe Tony Allen for a little bit, but even then I feel like the Celts helped or doubled way more than the Warriors did).
Not to mention the dude managed to hit 14 3s (at least 1 in every game). Undefeated when starting, pulled off 3 in a row (2 on the Cavs court).