Tua shouldn't have thrown either pass that was intercepted, but he did (he stared down the receiver on the pick-6 from the beginning of the play). As a result, his QBR went down. Sunshine didn't throw ANY interceptions that night - his QBR went up.
I agree that his stats from that game don't matter for this year (but some voters will include it in their voting criteria [He's only lost one game as a starter, blah, blah, blah])
This āis what the Tua to Lawrence comparison is based on, not as a review of this year (which hasn't been stellar for Lawrence IMO).