So what's the best course of action? Fuel cut off, changing fuel lines every 3-5 years?
I would say #1 thing is to check all fuel lines, connections, tank and induction system thoroughly and frequently.
Years ago I could have lost my previous D-Jet 914 2.0 due to a cracked injector. It was spewing gas right on top of the engine, over the heat exchangers. Fortunately an angel or something gave me a nudge and I popped the lid and noticed it before driving to work that day.
My current car is track-prepped of course so everything related to fuel (and brakes) has been replaced and upgraded, but "stuff" can still go wrong at any time.