But going by the evolutionary origin of behaviors makes the whole concept of signaling uselessly broad, which is the exact opposite of what Patrick was trying to do in this article. E.g. this article suggests that all of these behaviors could have their evolutionary origins in signaling:

We do many things which are not in a narrow sense instrumentally useful: we dance, joke, write poetry, throw parties, go on vacations, dress up in expensive fashionable clothing, watch and participate in sports, and so on.