My best guess is an engineer specified something and a purchasing agent changed the spec on the order (I alway watched purchasing agents like a hawk because I once got bitten by one who knew better and eliminated a rather critical requirement I had put in the req). Either that or they sent the intern down to grab the tape and they pulled from the wrong bin.Why would it not be if involved in electrical work? Maybe they thought being in a space vacuum would negate the heat?
Lots of things that aren't flammable in Earth's 80% nitrogen atmosphere are super flammable in the 100% oxygen environment of a space capsule.