I think that’s a general truism, and greater understanding could have saved many lives (Glasgow Police 135 jumps to mind). I know of a 155 that had a flame out after a blocked jet pump left the remaining fuel in the forward left tanks unusable, leaving the crew to believe they had more useable fuel than they did - but a red warning on, of course!
You could get yourself in a very bad spot with the EC 225LP if you did not closely monitor the fuel transfer especially if you had the extra forward external tanks fitted. One of our machines had to drop into Anduki enroute KK to Miri when he still had scads of fuel but not much in the feeder tanks. Of course he was welcomed with open arms and back on his way in minutes to home base to fill out an “interesting and entertaining incident report” that would have won a prize for creative fiction if he had gone with the first draft. “Very nice but I think we can actually prove you were present in body if not mind aboard the aircraft at the time of the alleged incident! Wanna give it another go?”