I think the general reputation among the, say, postdocs (generally intelligent and creative but cynical and past the naivete of the grad student) in synthetic biology whenever Professor Church makes an announcement, is that yes, that was something we had mused about but we know already culled it as a bad idea or an idea not worth pursuing at the moment ("I can't believe he actually had the audacity to propose doing that"), and a generally feeling of pity for the grad students and postdocs who are obligated to work on it. Of course that limits the pity to the
seen; think of all the poor souls tirelessly working on the project that either totally failed or were a just a cog in the machine on a giant effort that would probably have taken less time and less effort if only the community had
waited for the tools to become marginally more sophisticated.
Of course when you are as politically connected and as well known as Professor Church, you can afford to burn people on these impractical efforts, which of course cements your reputation as being successful at doing the marginally possible (or unuseful but with a wowworthy headline), which attracts grad students and postdocs who either blindly or cynically chase working for someone who will improve their reputation, and also makes it possible to further secure funding for crazy projects that anyone else would be laughed at for pursuing (if they were unsensible enough to do in the first place).