It's not about teflon, but the chemicals used to attach this (or any other) extremely non-sticky plastic to a pan.
Imagine the kind of chemistry needed to make a thing that a cooked egg slides off on it's own stick to a metal surface in high temperatures.
* This is mostly incorrect, I don't want to spread misinformation.

Teflon is otherwise inert and shouldn't have health implications on it's own (that we know of).

Obviously I'll still avoid ingesting any more plastic myself, as much as I can help it. Not suggesting anyone chews on PTFE tubes.