Unless things have changed since the last time this story came around, the synthetic meat stuff is still grown using meat-based nutrients (chicken broth, etc.), so it's still not vegetarian even if you aren't counting the animal cells that were used to start the culture growing. So I still won't be eating it, unless they can feed it veggies instead, but even for carnivores, it'll be pretty much a lab curiosity unless they can do that anyway. (I suppose it's possible that they could get some economic benefits by feeding it the leftover animal bits that would otherwise have become Pink Slime (TM) or Animal Byproducts, but not much.)
As far as yuck factor of some processed animal products goes, if you eat microbially-modified foods like cheese or tempeh or beer, you don't really get to complain. (I'd include natto in that list, but it's pretty gross.) There are some vegetarians who object to vegetarian fake meats because "Eww, yuck, how can you eat anything that's trying to be fake dead animal!", but I'm not usually bothered by that - we've evolved as omnivores that use fire, so cooked dead animals are tasty even though we can now choose not to eat them, and most fake meats are really just patties or chunks of vegetable protein with optional umami flavors that can be used in traditional recipes.