Well, in my experience period of nearly 45 year my antenna was hit by a low pass flying plane, full power MERCO 61, RC1 Robbe Maxi.
I lost my transmitter and antenna but not my head. I had no strap on and was happy for that.
The tip of the wing must have past a few inch from my face!! The damage on the LE of the wing was near the root,

I could stick some remains of the antenne in the grounded transmitter again and could safe my plane. The parts of that antenne were 10 feet away from me.

IF I had a strap I would have been hqappy with a broken one.

Real story and no reason not to use a strap, it only happened to me.

Cees