In regards to comparing Tiger Woods playing with an injury to a disc golfer playing injured…ball golf is extremely difficult to play with any sort of injury. The margin for error is just so small and the need for your confidence to be at 120% goes down quickly when there’s even the slightest ailment.
Comparing the skill set needed for a top ball golfer versus a top disc golfer, to stay competitive, is like comparing a disc golfer to a corn hole pro. When your off the green in DG you can just throw it up there by the basket and knock it in. When you’re off the green in ball golf, you may have to put the ball up or back in your stance, open up or shut the club face, swing steep or swing flat, take a 30% swing or a 60% swing, follow through or hold it off. Is it a flop or is it a bump and run? If you short side the green it’s nearly impossible to get up and down, not to mention the slope of the green and the grain of the grass; all of this to consider and you might be 15 feet from the hole!
Any small injury that may effect your swing certainly effects your confidence and then you’re chunking one and skulling the next.