Regardless of veracity of OP's claims on Twitter, it's worth noting he sells "bone broth" and other animal-derived health and fitness products. There's always a dog in the fight somewhere.
> Spoiler alert - I am incredibly skeptical, and am short $BYND
So...sells his own bullshit superfood, and is short on BYND. Welp, I'm convinced that he's completely unbiased and only interested in the greater good.
Where do you draw the line with processed? A beef patty is in essence just a steak, ground up, and mushed together. Now there are no doubt some more unsavory purveyors of beef patties that do more than that, but in itself I find it hard to argue that a beef patty (which I can trivially make myself in my own kitchen using only a chefs knife) counts as processed.
edit: that being said, I don't find his overall argument persuasive at all and it's not like he's a neutral scientist.
Some beef patties are ground steak.
Others use mechanically recovered meat, where the bones left after butchering are sprayed with high pressure water to blast off any remaining scraps of meat.
One country had significant health scare where MRM was thought to be the highest risk product: http://news.bbc.co.uk/1/hi/health/1482140.stm