River seems like we're burning money without reads as I don't think a single worse hand for value shoves. Not sure if they have any bluffs in their range on that run out either.
In the long term, without reads calling these rivers won't be profitable - yes you will catch a bluff now and again but the micropool doesn't bluff often enough to make it profitable long term. Pick your spots carefully.
Preflop call with K9s 7-handed against a tight UTG opponent is already very loose. Same goes for the turn in a three-way spot when the initial raiser is bombing on a blank. Once you get to the river, it's definitely a fold.