Health has become a sort of religion for many. Health, food and religion frequently go together in old mythology and now new.

"Good for you" and "bad for you" spread like old myth, factions fight, people have incredibly strong beliefs sometimes which have at least a little basis in reality sometimes they are worse than harmless.

These days it just isn't because some mystical being said so.

The dimensionality of human health, nutrition, and environment over time is many orders of magnitude beyond a Python script. We know and (accurately) measure far far less than you think.

Except this presentation explicitly states that they don't really know what it does to proteins, only that the changes are "complex".

And you can turn your argument around. Why everytime "science" is involved, the immediate presumption is that it's safe, especially when it's done for profit and when we know you can pay to get whatever "science" you want. Remember the many studies funded by the food industry that showed that sugar is perfectly safe and that fat is the dangerous thing?