Totally true and that is why most manufacturers and dealers berate the magazines about as hard as the posts here.
Most of the writers I know do have relevant experience outside of writing. Chris Binns for example is a professional recording engineer and session musician as well as electronics mender when he gets the chance. But your point is well made, that said I would sooner read an entertaining article from somebody that doesn't know which end of a soldering iron to hold than the tripe written by a fair number of super-objective engineers.
Have you read the Naim forum (or insert most other fora here) lately?
Cheers
Jason