I guess that's a practical reason to prefer the 1-arm signal to a the 2-arm version
I remember once doing this and one of the captain's thought I was signalling penalty advantage. At the next breakdown he asked me why we weren't going back for the penalty. Took me a second or 2 to twig.
Why guess.....just show the clip and it will probably be obvious.
General consensus here would seem to be that a still image isn't very helpful!
The purpose of the photo is to explore the concept that the red captain may think that the ref is awarding them a penalty poo-pooed by you a few posts ago (#66)