If we're going to pick up on BAR's fuel tank problems from 2005 (and calling it a 'secret fuel tank' as the article does is rather disingenuous), then it's worth also pointing out that the tank manufacturer said that BAR's design wasn't unusual; they were merely the scapegoat picked on by the FIA during a period when it was noticeably pro-Ferrari and BAR were for a period their leading challenger.
Or we could point out that McLaren specifically asked about running a hydraulic-based hybrid system in the late 90s and it was initially approved then rejected on pressure from Ferrari, or about their (entirely driver controlled) fiddle brakes system being ruled an illegal driver aid and banned while Ferrari were allowed to decouple the throttle pedal from the engine throttle, or Ferrari getting higher spec tyres from Bridgestone than the other teams, or.....
Or we could point out that McLaren specifically asked about running a hydraulic-based hybrid system in the late 90s and it was initially approved then rejected on pressure from Ferrari, or about their (entirely driver controlled) fiddle brakes system being ruled an illegal driver aid and banned while Ferrari were allowed to decouple the throttle pedal from the engine throttle, or Ferrari getting higher spec tyres from Bridgestone than the other teams, or.....