Since this is "their core business" it's hard to believe that this material misrepresentation wasn't knowing or willful. I believe they've partially opened themselves to a counter suit on this point.
Except... in the 26 years the DMCA has been around and all the millions (billions?) of claims that have been made via it, want to guess how many people or organizations have been faced perjury repercussions?
Starts with "Z". Ends in "ero".