Suggest hot gravity re-fuels to top-up e.g 332 should be stopped.
My first hot refuel was in July 1962 over the North Sea at Mach 0.75/35,000ft.. My last was on the Lufong 13 Platform in the South China Sea in November 2008. From 1966 my helicopter was being hot refuelled regularly both military and civil offshore.
Of the refuellings I have done since then at least 5,000 have been with Pumas or Super Pumas. During that time I have witnessed or have been told about uncountable spills and blowbacks caused by ignorant or uneducated operators but I have never seen, known or even heard of a Jet A1 fuelled helicopter catching fire whilst refuelling.
Hot refuelling is a non-event.