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

[eventnyc]

At the risk of beating a dead horse, I'd like to add two comments about using the outstreched arms:

1) It is not an approved HFHS mechanic

2) Our interpreter said it best, don't use it (for reason #1) and that if you saw someone doing it off the court, it looks like "Duh, what's going on!"