Maybe! Idk, I used to like mock duck. Soy based lunch meat is pretty good too. Alas, I'll never be able to try this company's stuff as it all has wheat in it.
Sounds like its essentially seitan, and frankly you can do amazing things with wheat gluten. My personal fav is the hilariously named WTF method (wash that flour).
For spam I imagine they just salt the hell out of it. 😂