Unless your philosophy is "I will put anything in my mouth that isn't proven to be unsafe", I don't think that's the right way to look at it? It's not that I see it as "unsafe" (at least not obviously so), but rather that I don't see it as "safe", either. "An [obviously] unnecessary risk" is probably a better phrasing, because it seems like its safety isn't really well-understood at this time. Why take the risk when you can just spend a few seconds transferring food onto a plate or something?