Earlier quoted context omitted.
Easy! People have lots of different reasons why they may choose not to eat meat or dairy. "Not liking the taste" is one possible reason. If that particular one isn't your reason, then you may still miss the taste/texture of certain foods, so having a substitute helps.
Who said anything about liking or disliking the taste of meat? If you're vegan, you don't want to eat meat, for whatever reason. What sense does it make to then pretend to eat meat anyway? If you like meat so much you just have to have it, then what sense does it make to be vegan? Be flexitarian. Eat meat once a year, every Easter Sunday. Eat vegentarian. I don't know! But at least accept the fact that you can't stan…
I love that you can get all the taste without the violence and suffering. Eating is not always a single-person activity, so having vegan substitutes for meat and cheese is great when eating together with non-vegans who may be wary of falafels.
There are very few vegans who are vegans because of taste. Many are worried about the environmental impacts of mass animal agriculture killing trillions of animals every year.
The most prominent and outspoken animal liberation advocates — Ali Tabrizi and Ed Winters come to mind — are strong proponents of vegan-dairy, vegan-seafood and vegan-meat. It really doesn't make sense to call those people "pretend vegans". Check their talks and films[0][1], they aren't "making a joke of the whole idea of being vegan".
I don't get why carnists place such importance on real suffering and real death. Is it not real Adidas shoes if it isn't made by slave labour or something? Is it not a real car if it's not guzzling diesel? Why not cut down on causing harm when it's so easy? I don't get it.
[0]: Earthling Ed vs Infowars: https://www.youtube.com/watch?v=ScbeMdYkKDc
[1]: Land of Hope and Glory: https://www.youtube.com/watch?v=RF3VOpa3a7c