Yes, there ain’t much to complain except for health. After all, vegan isn’t a diet, it is an ideology and if meat was the only healthy option, then it would be vegan to sometimes eat animal products and use products that caused harm to animal. In fact, I doubt there is such a thing as a totally vegan as the world is quite harsh. Because veganism is about minimising harm. Anyway, back to the diet, vegans generally believe that meat isn’t a necessity for humans thus making this lab meat potentialy unhealthy (according to that belief).
Probably, but you will likely be able to use RSS Bridge to get an RSS feed anyway. Not very convenient though