Comments on Brier's short-handed article

[rr2000]

Can the experts comment on Brier's thoughts in this article?

http://www.cardplayer.com/poker_maga...es/?a_id=12285

I'm a winning full table player, and enjoy Brier's articles. But this article seems to imply 'you-better-not-try' short-handed. So, I am wondering. Why really are the short-handed games often quoted as extremely profitable?

1. Good hands hold up more often?
2. No 'schooling' phenomenon to benefit poor players on their weak draws ?
3. Good players can outplay others better?
4. other reasons?

I believe all of these contribute in some way. Which would be the most important one?