i don't know about that.Honestly, they should've just pivoted harder into the Impossible Whopper, and let the meatless options carry more of their menu.
I tried it when it came out, and it wasn't great, but I'm sure a non-zero amount of people would be at least some foothold in the market.
they used to be very close to as popular as mcdonalds when i was a kid.
mcdonalds menu is mostly the same as it was when i was a kid, BK fukked with theirs too much. i honestly think it played a major part.