I don't have any numbers, but most of the advertising I'm seeing for these products aren't targeting vegans, but rather meat eaters. The basic message seems to

I don't have any numbers, but most of the advertising I'm seeing for these products aren't targeting vegans, but rather meat eaters. The basic message seems to be "all the yummy flavour of meat, without any of the guilt or ethical quandaries", and "you don't have to go full vegan, you can make an impact with just 2 vegetarian meals a week, with the help of our delicious products". If they're not having an impact on the bottom line, it is not for lack of trying