The article uses both terms, "liquid-metal" and "liquid metal ". Perhaps the author didn't know what he was writing. Also, this term is not being used to describe an amorphous alloy or metallic glass. I believe the company has gone after other companies that used either of these terms to describe their amorphous metals. But I am not aware of them going after any company for using this term for simple melted metals or even metals that are liquid at room temperature (gallium, etc. ).
We here the term liquid metal paste used as a thermal barrier on CE components, which has been around for many years. So if it is not an amorphous alloy, not sure much can be done.