If I say "Ted is the Unibomber" do you think I'm saying everyone named Ted is the Unibomber? This is basic reading comprehension stuff

Saying "corporations have lied in the past for their own self interest" and then pointing to two very well known examples does not imply or over generalize that all corporations do that.

The point isn't to demonize all corporations, it's to say specifically that a pathology of some megacorporations is broadscale lying to the public about the safety of their products for personal gain.