The content of the article doesn't really square with the pessimistic title? Yes, sales aren't exploding like they were in the last couple of years, but that's because Impossible & co have been on the market for a while and still cost more than regular meat.

If they become equal or less in price than meat, they'll go from a slightly indulgent curiosity into a viable alternative. And there's also a lot of potential in plant-based chicken and seafood, neither of which (in my limited experience anyway) are anywhere close to replicating the original taste and texture.