For what it's worth, I'm pretty sure he legitimately worked for Imagineering at some point. Still, I would hardly describe someone that did contract work for Imagineering as being a true "Imagineer" in the purest sense of the word. Contracted hires still work for their parent company, they still primarily report to people at the main office, and many would consider themselves an employee of their parent company first and of Disney second.
Many contracted hires end up at Disney just because the hired company had some spare hours for a few employees sitting around, not because those employees show any true love or knowledge of Disney. That would explain why the guy is getting a few details wrong (not that it can't happen with full-time Imagineers either).
Not to diss the guy too much… Still, I think he's generally correct that Disney won't crack down too hard as long as he doesn't give valuable information away; I just think he's being a bit, well, reckless.