If they keep wearing like they have, they will probably need to be replaced before 3k. We went rock crawling at Sand Hollow this weekend for Trail Hero, and these tires stuck to everything. I wish I could find a tire this good that lasted as long, but I think that's the tradeoff with these soft tires.
One of the other UTVs had Nittos sticky tires; I can't remember what model, but he was able to climb everything.