An e-mail:

I’m a scientist, and it never occurred to me that Wilmut conducted the experiment personally. The “senior” author is the one who runs the lab, hires the people, gets the money, mentors the bench scientists. When I was in grad school, my advisor hadn’t gotten his hands dirty in decades. Now I have my own lab, and I haven’t been at the bench in years.
So, this qualifies as a complete non-story.