I couldn't give a rat's rear end about what's said in a briefing, I'm referring to everyone from Colin Strong and Duff Hart-Davis, through Pablo Mason, right up to this very forum where people winkingly say things like "...at about 250 feet...".
I'm not particularly worried; I expect people to know what they're doing and follow the rules where necessary; that said, if you're going to break the rules, you'd better be very sure you know what you're doing.
P