Because people can have opinions on industries they don’t work in?
I don’t work in hospitality, and I have never cooked for a living. I can still confidently tell you when my food is burnt. A chef then can crawl out of the kitchen and explain the complicated process which resulted in me getting burnt food and I won’t care a bit.
My tax money paid a researcher to study long years, then my tax money paid for the equipment the researcher used to research and my tax money paid for the researcher’s time too. And then the researcher writes up what they found and pays a third party also from my tax money and that third party does everything in their power to hide the paper away from me. That is burnt food. I don’t have to work in the industry to recognise it.