I was also alarmed by this at first, but these are just Debug.Log messages, not warnings or errors. I don't think this has any impact on game performance, although it can sometimes be annoying as it actually floods the console when trying to debug.
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My own two cents, maybe I'm preaching to the choir, but here goes:
To avoid cluttering your action lists, I would wrap this in a separate action list that I can use to toggle between speech menus. For example, you would have a "ToggleSpeechLeft…