Yes there maybe some myths, and that has created the 'mystique' that surrounds him and his legacy.
But what isn't a mystique is the fact he understood his own swing more than any other player in history, and we can have an insight into this when you study his book AND take his teachings to the range. Its this combination on total undertsanding allied with an incredible book that means the guy will always have a place in any golf discussion.
His swing gave him incredible control and that also adds to the fascination. His clubs were not heavily modified (except his driver), although he used negative bounce (except the 8 iron) and very stiff shafts. I fail to see how this constitutes as ' He had to use super doctored up clubs to perform'. They were simply customised, as many other players have done, such as Nicklaus with his back wieghting.
He was a small man who generated a hell of a lot of club head speed with incredible ball control. that for me sums up why his swing is analysed so much, he achieved the holy grail in golf, power with control, thats it in a nutshell for me. Add to that he taught himself this swing, took no lessons and literally figured it all out by hitting tens of thousands of balls.
However, his swing isn't for everyone, it takes alot of hard work and practice. There have been other methods, one planerism, in various guises, now we have stack and tilt or whatever, lots of other theories that work for many players. Hogan's work is for a dedicated player with a love of mechanics, which I have. Standing on a range for 2 hours working through minute points of theory using his book is a delight, and is a hobby. Others like to go and play a round of golf, I don't, I prefer to work on my swing. This is why his legacy lives on, you can NEVER ever ever finish your own analysis using his book, it just goes on and on and on.
Tell me one modern swing that can stand up to that level of scrutiny and analysis?
The guy lived and breathed swing mechanics, like no other player ever did or maybe ever will.