I think Americans take what there told with very blunt face value and dont attempt too reach out or try anything new.
Most times I've seen people mention "Removing the scent gland" there actually refering too removing the inner popliteal lymph node what too my experience does nothing? Sure Its not nice too eat and I dont, but I still roast entire roe legs (including tonight.... I wont be removing it!) Probably what's happened Is an old timer has shot a deer that had an infection somewhere and that genuinely effected the haunch and the rumor spread so far Its now a very common thing Americans do, and anyone that roasts an entire leg and posts it on too FB every comment is "did you remove the gland!? It taints the meat!"
Tarsal glands are the genuine stinky ones there on the lower leg often black from urine during the rut but even then I cant actually say I've seen a whitetail hunter be careful around them besides saying they can smell deer on them. I've seen Mule deer hunters be very methodical about being very careful removing the skin and lower leg without touching them claiming it makes there deer taste horrible if they touch it and spread It around.... when there said deer Is been feeding on sage brush and mule deer are just an inherently very "gamey" species due too diet.
I just find it unlikely It genuinely effects the meat majorly Its more likely down too the sex, time of year, age and the diet of the animal.
Rutting red stag Is pretty bad, but a mature fallow over here is pretty known for being a horrendous during the rut.
Another thing is as well they wont eat fat, they wont eat an ounce silver skin, shanks 90% of the time they toss away, 90% of there cooking Is steak and ground meat, they do little too no roasts or slow cooked dishes.
the only piece I see actually slow cooked "often" is the neck, and the only roast I see often Is what they call a foot ball roast what we call the knuckle.
I hang about with a bunch of people from the US and scroll FB in majorly American dominated spaces, some of the crap I see is awful - one of my own "friends" attempted too justify how he shot a mule deer at over 70 yards (first archery deer) whilst It was looking at him ready too bolt, as expected the deer ducked and turned and he sliced it through the neck because the arrow was traveling for well over a second.....