Beef prices have fallen in the US over the past year (quite unlike all other meat) because farmers increased production. That certainly contributes to the "flop", but anecdotally no one I know (in the US) likes or even seeks out the fake meat. It's just not accepted here as far as I can tell (and I work in the restaurant/hospitality industry).
Depends where you live, in SF, LA, Vegas, Austin, and Miami I have impossible burgers all of them time - even Mighty Taco in Buffalo has impossible meat and Buffalo is last to get anything (they “allowed” Uber ten years after everyone else).
The high quality fake meat is great - really satisfies the want for a burger or hot dog since becoming vegetarian and makes a lot of dishes where something like ground beef is usually called for very similar to what I used to have.
Of course there are markets where it has been more readily adopted than others, but even in those markets it's not performing the same as it has in Europe or Asia.