It doesn't actually say 'extracted' though, are we sure 'protein' actually implies that (i.e. separated it from other elements) vs. just being marketing copy to make 'yellow pea' et al. more exciting to certain people? (Protein, grr. Meat replacement, protein, grr, yeah.)

Not to mention all cooking really is is a bunch of refinement, extraction, chemical reaction, and heating processes anyway. I refine & extract & process in my kitchen all the time, including separating protein in milk (cheeses) or wheat flour (chaap, seitan, or for the starch) for example.