Hunter Renfroe was paid in arbitration this year based on being a 2.7 and 2.4 WAR player the last two seasons. Joc Pederson was tendered a qualifying offer based on his huge offensive season last year (144 wRC+).
Their current WAR, which you're listing, has zero to do with how they're currently being paid. I'm surprised you didn't include Stephen Strasburg who's getting paid $35 million annually. Surely, that's the cost of 34 innings and a -0.5 WAR the last four years, right?
I get a chuckle out of reading posts from you seemingly every week in which you talk about prospects like you know them, when you've previously stated how you don't follow the minor leagues. There's a reason why everyone here is laughing at your claim that the Rockies would be justified in asking for Chourio in return for McMahon.