I was going to simply post a pic of Magic but you have it covered.When a wing or a big closes out on a shooter, which shooter is more likely to get their shot blocked, the 6'1 guy or the 6'5 guy?
And 6'5 Tyshawn Taylor drove the lane just as much as Mason does and had WAY less percentage of his shots blocked than Mason does.
Magic Johnson at 6'2 is just another PG. At 6'9 hes one of the best ever because of his court vision. This isnt complicated.
Doesn't anyone on here remember Kane posting up hapless smaller point guards who attempted to guard him?
Height and length - as long as they don't come at the expense of other qualities - are an asset anywhere on the floor; it's just one of the quirks of the game.