Killing animals to eat the flesh of their dead bodies is doing two things that are less than ideal. Producing animal flesh without having to kill animals might avoid one of those two suboptimal things, but it also makes someone less likely to stop doing the other suboptimal thing. It’s much better to stop killing animals AND stop eating animal flesh. This way you fulfill the command to be merciful (Luke 6:36) while also following God’s instructions on what is good to eat (Genesis 1:29). I will continue advocating for what is best instead of supporting this half measure of lab grown flesh.
For more faith-based perspectives on lab grown animal flesh, read this post.