"I argue that you still shouldn't focus on programming skills (which was Paul Graham's suggestion), because other skills will probably help you more. "
You don't have much of an argument yet. You are just stating this as a conclusion and it still has nothing to do with the title of your post ("elite mba") and neither does it debunk PG's point (learn to hack as opposed to trying for an elite MBA)
I was making a related point that I thought was interesting, not a direct rebuttal of PG's statement. I was rebutting the related claim "if you choose not to get an MBA and go into the startup industry, you should focus on improving your programming skill, even if you're already a pretty good programmer".
You don't have much of an argument yet. You are just stating this as a conclusion and it still has nothing to do with the title of your post ("elite mba") and neither does it debunk PG's point (learn to hack as opposed to trying for an elite MBA)