You'll hear equally dumb things at gun shops, gun shows, and a gun range.
If you think that's odd just think of the two training companies here who will gladly take your money for NRA Outside the Home Protection class but will vote against someone's CCW.
Some of the dumbest things I've heard over the years came from people behind the counter.
Yeah, but those people aren't required by law to know the law and teach it.
HQL instructors are.
There are a lot of HQL instructors mis-informing students. I'd guess at least 30%, maybe 50%.