It’s not a new idea, and certain elements of it both make sense and have some peer-reviewed justification. Some parts in the article do read a bit like assumption though.
I recommend the following articles, especially the Breslin paper:
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Scientific American article from 2015 How the Sense of Taste Has Shaped Who We Are
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UC Berkeley’s short page discussing the evolution and importance of taste in vertebrate evolution.
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Breslin’s excellent 2013 paper An Evolutionary Perspective on Food and Human Taste goes into a good bit of detail on both the mechanics of tase and the importance of it from an evolutionary context. This paper is definitely worth a read if you’re interested in this topic.