I can't really see how? It doesn't have any affordance and discoverability is rather low; but there's feedback and a modicum of discoverability. It's useful [to me].

Now, WhatsApp have a pull-down feature that starts a voice note or voice chat or something ... it's awful, if you scroll down in a chat it is really easy to trigger by accident.

They also have a big button at the bottom right to start some sort of recording. Were they trying to get people to start recordings by accident? Does that help them somehow?