This seems sensible:

Hawkins added that there was some argument to support the use of gene editing to create species better able to resist diseases. “However, in most cases, diseases are preventable through good housing, husbandry and care and veterinary surveillance. Directly editing animal genomes should be seen as a last resort,” she said.

Also, rather than genetically modifying cows to produce less methane, perhaps we should eat less cows. It feels like saying we can keep burning coal because we’ll develop carbon capture and storage.