The biggest advertising lie from all these companies was "it's so good that you can't tell it apart, vegetarians even sick from it". If you ever tried it, it's not Beyond Beef, it's more of Near Rubbish.
Can you recognize that some people hold different opinions from you? You feel that way - great. But clearly not everyone does, and labelling the product as what it’s historical analogue is allows people to have a sense of what they are getting. Did the designer try to mimic beef, or chicken, or pork, or what? It’s handy for the newly curious.
Unsure what's the personal attack for, but to answer the second part of your comment - should we also allow labelling quinoa as pork imitation? I mean it has the protein...
It's handy to know when you are in substitutes section and seeing what is what. Hijacking SKU is fraud.