In that case, if it was you, would you use the verb “mumbling?” I don’t think so - that describes how someone is speaking which is completely different than interference. When I’m talking to someone overseas on Skype and the connection is bad, I sure wouldn’t ask why they are mumbling.
I dunno - maybe I am putting too much into it. Sure is a lot that doesn’t add up, tho.
Come on. english is not their native language. They use words they know to best describe the situation. Half of the time the verbs and adjectives are wrong
I think of mumbling as something a person does when having a stroke .... Lack of oxygen
Could the ventilation system simply have stopped working?
Cut throats probably mumble.