The fat profile of animals raised on grains is quite different than that raised on their natural diet of forage. the omega-6 to omega-3 ratio is much higher. omega-6 is linked with inflammation
Significant amounts of Omega 6 are loosely linked to some inflammation - primarily with transfats/veggie oil. Other research shows both Omega 3 and Omega 6 from natural sources (including beef) are good for inflammation. Personally, I don’t find things not replicable to be very believable. Having personally done HFLC diet (and know plenty of other people with the same including most HFLC research) with plenty of grain fed beef and had my health shoot up and weight go down, I have a hard time buying what you are selling.