It's not the weapon it's the person using the weapon...that said... crossbows have the least of a learning curve than other bows...a first time archery hunter is likely going to choose a crossbow to enter the archery seasons...the more inexperienced hunters will make the most mistakes.
Your mistake is separating hunters by their choice of weapons...instead of experience.
That is a very excellent comment.
When I got into archery hunting, I had some hard-core friends to help me learn. I had to reprogram my brain to bow hunt, not rifle hunt, there are a lot of different factors.
I think some of the manufacturers of crossbows and modern high-tech compounds are at fault. Publishing all of these insane bow speeds (which are measured under perfect, precise conditions) and people without the experience think that 50 and 60 yard shots are commonplace when in fact the vast majority of bow hunters, regardless of the bow type, have an ethical shot range much less than that.
Before it starts, I know there are individuals who can and have made such shots. What I am saying is, take 10,000 random bow hunters and drop them into a concert hall, then pull out 100 of the crowd. How many of the 100 would be able to make the ethical shot under hunting conditions at a distance of 50 yards? Not many is my bet. I've been at it now for more than 20 years, and my "in the woods" kill distance is 30 yards. I can shoot farther in my back yard or at 3D targets, but after sitting in a tree for a few hours in cooler weather, maybe in a seated or twisted position, well, you get the drift.
It is with experience and good mentoring that you learn your personal limits. With any weapon. It's just that a crossbow lends itself a little bit more to taking some experiences a person may have had as a rifle hunter and transferring them to the crossbow because it looks and handles like a rifle. That 50-yard shot may be a slam dunk with the .270, but it is anything but with any bow.
But gun hunters to the same thing. The traditional "sight in" is off of a bench at a measured 100 yards over a flat landscape. People dial in their scopes and can make tight groups off the sandbags. Try to have them hit a pie plate, standing off hand, at 50 yards. Once again, it's back to the experience and mentoring of the hunter.