TI did build a very robust system.
The problem, as I understand it, with the RIFA capacitors is they were manufactured with a plastic shell. Over time that plastic has gotten brittle and developed microfractures, and there's no way to tell if those fractures have exposed the interior of the capacitor to the exterior environment yet.
If they have, humidity from the air can short out the capacitor and the capacitor goes bang and catches fire.