I don't think it was billed as a safety issue as much as a hygiene. They believe the tape an carry skin diseases, blood etc, because by its nature it is very porous and provides a great environment to harbor things such as that. Why they're worried about it on the headgear and not on shoes etc is beyond me. I'd think tape on the shoes (around the end of shoes not on the laces) is more of an issue than on the headgear.

I'm not agreeing one way or other just giving some of the reasons we were told why it was brought up.