Hard to get more ultra processed than bread and oil. Unless you're using a different definition, in which case modern bread and oil is readily available that's just as unprocessed as 1000 years ago.
Modern cooking uses a lot less lead and sodium hydroxide than we did in the past too.

The entire dialogue on processed foods bothers me because there's no solid definition that doesn't seem to catch a lot of stuff it shouldn't that's also actionable. When you push, they all seem to condense to "unhealthy food is unhealthy and you should eat less" which is useless.