The article is a bit vague as to the claim by Cougar that Sikorsky "fraudulently misrepresented" the aircraft could could continue to operate after a loss of oil pressure. That's different than being able to operate for 30 minutes with no oil. The RFM has always stated that MGB oil pressure below 5psi is a "land immediately."
It will be interesting to see in depositions and testimony just who said what to whom, what claims were made and how those claims were understood. It will also be interesting to see if the case goes forward to trial or gets settled.