tiger-proofing

I'm sure it's been written before - I don't understand "tiger-proofing" a course. Not the desirability of it. That makes sense. But the method doesn't. If the concern was that his drives are generally longer (thus turning par 5s into par 4s), wouldn't it be better to shorten the holes so that more golfers could turn the 5s into 4s? That would even the playing field just as much.