I personally only buy locally raised meat, mostly from a local farmer who can guarantee his animals are raised properly/organically.
I see the big issue with meat is that of supermarkets/fast food chains driving down cost and increasing volume, which leads to poor practice in the supply chain. Meat should be a luxury but its everywhere and its cheap.
The environmental problem with artificial meat will be the same, the same players will push down costs and increase volumes so the carbon footprint is still bad, and this will fuel even more population explosion.
From an animal welfare perspective, we may see some types of animal go extinct, look what happened to numbers of horses after the motor car became common; cattle and pig dont have other uses.
As always its not the technology thats right/wrong, its how we use it.