You make a good point here but the fact remains that Jeff Atwood is a pseudo-expert, not a serious authority. His opinion shouldn't be trusted. About anything. Ever.
Each time I see some piece of writing from him, on a topic about which I am reasonably knowledgeable, I find some error. As a consequence, I tend to distrust anything from him on any topic about which I am not as familiar with.
Appeal to authority can be a perfectly valid inductive method when used as a statistical syllogism. It is only a fallacy in the realm of formal logic, where the truth or falsehood of a statement is independent of its source.
This is a common but quite annoying misconception. The following is a perfectly valid deduction:
1. Authority A is correct on matters in subject X p percect of the time.
2. A claims Y regarding a matter in subject X.
--> Therefore, Y is correct with probability p.
Each time I see some piece of writing from him, on a topic about which I am reasonably knowledgeable, I find some error. As a consequence, I tend to distrust anything from him on any topic about which I am not as familiar with.