Trust me, these trials will continue . . .
"unfair to the animal involved"
Well, perhaps we should practice on people first.
"we shouldn’t undertake such an endeavor simply because we can"
According to the article, we cannot, therefore we must try to answer the questions involved, or simply stop asking.
You don't want life to change by human intervention? Well, that's been the standard for 10s of thousands of years, from livestock to household pets, from farmed corn to bonsai.
It's just the way of it.