This is a fabulously creative line of argumentation. Because one has achieved someting academically, you should appreciate your opportunities, shut up and not comment on anyone else's qualifications. Brilliant, just brilliant.
Especially when "commenting" is how you make your living. They should just talk about the weather; that will attract readers, for sure, for sure.
You could also ask why Kelley isn't following his own advice -- he certainly falls in the category of (paid) kibbitzer.