I'm not carnivore, but I eat a lot of beef and I also have seen this general rise. It is especially notable in the last 2 years (but maybe I just wasn't paying as much attention before).

I used to be able to reliably get chuck cuts for $7/lb. Now I rarely find it under $9/lb. Ground beef is the same. I must be missing the sales, because I haven't seen $5/lb ground beef this year at all.