Why unfortunate? Plant-based meat substitutes are exactly as unhealthy as one would assume from them being ultra-processed. They are made to taste good in the same way (adding lots of fats, sugars, salt, etc.).

Perhaps there are ultra-processed foods that are not unhealthy, but that does not include "Impossible Meat".

It is unfortunate because we cannot in good conscience ask people to switch from barely-processed meat to ultra-processed meat substitutes, despite the meat industry's heavy contribution to looming climate disaster.

Many of us have switched to things other than meat, but that choice seems beyond most people.

Another alternative is what is called "lab-grown meat", which is not a meat substitute, per se, but is actual meat that might be a lot less harmful to produce. Where it sits on the "processed" spectrum is hard to assess. Obviously it is, in one sense, 100% processed, but details matter.