Not surprised. My dad and older brothers had 1 processed when we first got into hunting. The returned meat was yuck. After that we started processing all deer ourselves.
I think a bigger problem that seldom if ever gets addressed is processors that skim on meat processing. Either whole deer processing where they keep some prime cuts, or sausage makers that "tax" the batch.
I took 57# of clean, lean, processed venison to a well known processor to have sausage made one time. With pork mixed in, it should have started at around 75# of meat. I got 27# of finished sausage back. Dude kicked me out of his place when I questioned the discrepancy. By coincidence, the tool's other side business was catering. Still p!ssed.