Beyond Meat has never claimed to be a healthier alternative to meat and it's a bit of a straw man to comment like they did. I also don't see many margarine induced illnesses or deaths. Everything is fine in moderation.
Not sure why you'd think that's a straw man when they explicitly state it on their website. First sentence on their Products page:
"Imagine your favorite meaty dishes like burgers and tacos delivering the juicy, delicious taste you know and love, while being better for you and the planet." [0]