Spread arms signal for no closely guarded? Yes or no?

[Ref Daddy]

I use it.

I don't think of it as a mechanic - just a reminder and signal that the defender is off the ball too far. I also make a point NOT to hold the arms spread, just a quick "measure' and then drop 'em back down.

I view it as more of game management than anything.

NFHS does not have a "machanic" to warn players to "watch your hands" or "get outta the lane" either. Don't we all use those too?