It appears to be an issue with expectations for some people (including me). "Burger" is associated with a certain flavor, texture and appearance, so when I eat a veggie burger my subconsciousness is disappointed because it's too different. The veggie burger becomes a worse version of a regular burger rather than an independent dish. This is the main reason why I dislike so many "vegetarian alternative" dishes on our kitchen's menu like chili sin carne, while some "standalone" vegetarian dishes are among my favorites like pasta with spinach, tomato and feta in cream sauce.

I hope artificial meat will be introduced as a 'luxury' product and replace mass-produced fast food ground beef after it is well established as a genuine alternative and not some inferior knock-off like artificial cheese.