When I started with "veganism", it was a sloppy veganism. I was choosing to not knowingly get any animal product without really checking all I might that there wasn't any animal product in things I got. In truth there was financial restriction involved. I had to grow in learning more and more animal products were still in things I wanted, even if small. And I had to learn, if I really seriously wanted no involved contribution to demand for animal products, I had to find alternatives, however I could afford to do so.
Fortunately desire for meat was put behind me, even before I saw that I should be vegan. So faux meat, though I tried some, is not something I ever feel I really need, it was more useful in recipes I tried, and I don't want anything I can't distinguish from slaughtered animal flesh.
The impossible burgers such as what Burger King would have would be plant-based, IF there is request to not have it cooked on the same grill, and they are honorable enough to be trusted with that as though they cared, it is still derived with ongoing tests with use of animal flesh, so not actually vegan as such.
Sure, it is great if some will keep choosing that instead of meat from animal flesh they would have otherwise, but if we really care about no longer having contribution to use of animals with the demand for that, it wouldn't be chosen with the awareness there should be.