And you say that with your agronomy degree hanging on your wall.
It can easily alter the environment without proper rotation.
Finally, sucks for you guys, but cows over here are not bred like that.
And I don't see yours.
I'm not talking about an alteration of the environment, I'm talking about raising/growing in an environment drastically different from its natural one.
On topic: I don't see anything wrong with lab-grown meat. Unless it isn't required to be labeled as such, or something insane like that. I don't see it being a feasible replacement for natural meat though.