The justification is contained at the end of the sentence you're quoting.

sanj · on Jan 5, 2009

I disagree:

to at least give people a small idea of what is going on with him, so they can gauge risk

That's not in his best interest. It is in the stockholder's best interest, the company's best interest and (perhaps) that market's best interest.

I fail to see how it is in Jobs's best interest.

nailer · on Jan 5, 2009

It in Job's interest to serve his shareholder's interest.