1. Skill, hard work and mostly innovations in equipment allow PGA Tour players to do kinesthetically and kinematically unsound movements and hit great shots and shoot low scores.
2. Amateurs logically assume the best players are doing things that they should aspire to do.
3. Equipment innovations alone are not enough to overcome the unorthodox/inefficient moves.
4. Amateurs struggle.
Solution. Admire PGA Tour players for their greatness playing the game and look at their swings in the same way as you would not copy the shooting motion or dunking style of an NBA player.