Quote from Denti:
Our company manual requires at least 10 NM from any echo associated with thunderstorm activity (even green) at FL200, at least 15 NM at FL250 and at least 20 NM at FL300 or higher.
Guess your company doesn't operate schedules that involve crossing the ITCZ? And doesn't plan on crews crossing any cold fonts in, for example, the US?
Strikes me (pun not intended) as being the kind of advice that covers the management at the board of inquiry. On the other hand, in case you ever have to comply with it by doing a "one-eighty", it might be prudent to have a camera with you. (My comments are not aimed at you personally, by the way: I'm well out of the game now.)