There's good arguments for the case that gatherer communities actually had generally better health and far more free time than farmers and agrarian society.
Farming provided the calories necessary for a population that hunting and gathering could not support (so no going back) but required basically working all day to make it work and survive less than ideal conditions. But prior to farming people often had significant more free time.
I think it's a great opportunity for exposure for these new meat alternatives, and also a potentially great income boost that will help them expand operations and secure their future business.
My impression of Impossible Burger v1.0 was that the pinkish/uncharred bits had an odd sweetness and moisture/texture that made it most distinguishable from a beef burger. With 2.0, the texture is a bit more firm and beef-like, and it seems they've put less emphasis on the 'bleeding' which I think has reduced the sweetness as well.
I had a notion that I intended to test with v1.0 that it would be more convincing if you charred the hell out of it and made it more like an overcooked burger, however I never did test it, and I also read that it didn't perform well (fell apart, etc) if too overcooked. However, I did really like the flavor and texture of the most charred bits of the burgers I did have.
Another aspect of this is that processed foods require less calories for your body to metabolize, since they are already partly broken down. While that doesn't specifically increase the rate of exposure to pathogens/toxicity, it does increase the net calories consumed in an already high-calorie category, and contributes to obesity.
It's at least another option, and seems to be far healthier than actual beef. In the tech world especially, there are people that have more money than time, and might choose this as a healthier alternative. Once you dress up an Impossible/Beyond patty with all the fixins, it is a lot closer to a real beef burger than a more traditional veggie burger.
It's similar to saying, "if you care about your health, why are you going to Burger King". We all make compromises (not saying vegans eat meat though) so I think this is a fair analogy... as an omnivore, I like that if I do decide to compromise and get food from a fast food restaurant, I at least have this as another option that seems healthier for me and the environment than other options on their menu. FWIW I've tried the Beyond Burger at Carl's Jr. and liked it for the same reasons. I enjoyed it and would consider getting it again if I went there in the future.