Apparently long bows are more "forgiving" of less-than-perfect form, due to their torsional rigidity. With a recurve it is possible to "torque the string" with improper grip, for example. Also longer bows diminish the problem of finger stacking around the arrow's knock, which can be a problem if you have a long draw and shoot a short bow. That's my understanding of some of the differences, but I only have experience with a recurve so my comments above are not my personal observations.
I'm only 5' 7" and shoot a 60-inch Martin recurve, with a split-finger string grip. I draw about 27" and haven't had any trouble with string torque or finger stacking. I plan to buy a Bear Montana long bow for no other reason than trad archery is my kind of fun. It requires skill that, for me at least, takes years and years of shooting thousands of arrows to acquire. Part of the intrigue is the challenge of it, as it doesn't come easy for me.