Deuce did a video on that play. Assuming Hill was read 1 and Thomas read 2, both of those were open. Yeah, Olave didn't do the best clear out but his route did what it was supposed to do. Throwing it in Olave's direction shouldn't have even been an option.
Same video he showed another play where Olave was wide open for what should have been a TD, but Carr checked it down to AK.
I'm not defending the play calling as a whole, but there were plays that would have been effective but for execution.
That said, I don't put too much stock in players defending coaches publicly. They aren't going to criticize their coaching to the media, even if they hold criticism.