Obviously there are a lot of hands i'm ahead of, vs single opponent i guess it's okay to just check-call turn.
And yes, you are right that when i personally take this line, it's ~always one of the very few bluffs i can do, but i think when an average mid-lowstakes guy faces this line (turn checkraise vs 2 opponents) he'll not think in ranges and pot-odds, more of "what is this from the population" --> calls turn (delaying real decision) and then folds river with ~all the Jx (and obviously all the draws as well).
Also, in bounty tournaments i think population has extreme tendencies to overfold river when you go for their whole stack, they tend to give you way more credit.
If i was to change anything literally mincheckraising the turn is probably better
--> leaving their ranges wider, bigger FE on the river.
On this specific river i can be convinced that check-call is the highest EV (he'll not valuebet anything worse than a K, but can easily bluff with any of the busted draws we barely block)
And probably giving up on Q, fake-giving up on diamond to get value from the straightdraws...