It's very naive, a bit sad, and very silly.
It is all those things because everyone knows:
Short term pressure for profits is very likely to lead large companies to make decisions which will doom them in the long term.
Every libertarian could have told you that.
Why Greenspan has a such a naive and fundamentally flawed view we will never know.
Perhaps after a life time of fighting damaging over regulation he simply lost perspective. Who knows.
But please stop with the pompous OMG WTF BBQ FREE MARKET FAIL! articles.