Well,,,there has been a lot of discussion on ethics 100 years ago versus now. Not very productive or useful.
Let me talk about accuracy. Now all of those early greats aimed mostly instinctively/intuitively, whatever you call it, or something close to it. I have taught it to many and won many championships, so I feel confident in offering a few opinions. I will discuss them as if they are absolutes, which they are not, but they are my experience and opinions.
My experience is that most adult men can quickly learn to shoot accurately, wiothout consicous aiming, at 5, 10, 15 yards. 20 comes fairly quickly after. This is akin to the finger pointing skill we learned by first or second grade. We can do a lot of sports with this without concscious thought. Now if we step back a bit, and pay attention, most of us can extend this skill back to 23-25 yards. Then it breaks down.
At that point I suggest my pupils change to a different aiming method. To skip 30 yards and step back to 45 or 50. At those distances your bowhand and arrow will need to rise enough to bring the point of your arrow to near your line of sight. Fred Bear said you would be a fool not to aim with it, right in front of your face. So switch to gap aiming.
My point-on range is 52 yards. At that distance I would be confident shooting at a target, a 3D figure, a living elk,caribou, zebra, milk cow or burro. I would not take that shot but I could.
OK, what about 30 or 35 yards? Well, they were hard in this traditional style. I started every day at my club range warming up at 30 yards, shooting the course, and cooling down at 30 yards. Eventually I learnt it, instinctively,intuitively/subconsciously/ whatever you call it. With a bit of practice I have been able to maintain that skill for years.
The main thing to understand is that instinctive archery is a short-range proposition. Quick, intuitive, uncannily accurate and easy, but only at short hunting range.
Use it appropriately. You would not use a hammer to do the job of a hatchet, nor a chainsaw. For its job, instinctive aiming is the best, sometimes uncannily accurate. - lbg