Don't get me wrong, I especially value research for the sake of research, but it was a suggestion to make sure his work would be publishable and productive. This is an issue I've struggled with for years.
As for the wand thing, that's a good point. The penetration required to hit things within tissues would undoubtedly penetrate the meristem. My feeling is that you'd see some negative effects, but that IS why we do experiments :P