Teflon is a brand name for PTFE. PFOA is one of several possible organofluorides that can be used to manufacture PTFE. Tefal didn't replace PFOA with PTFE, because PFOA isn't a nonstick coating to begin with.
In fact, that site tells us nothing, because PFOA is largely a problem for the workers manufacturing it, so telling us that it's not in the "finished products" doesn't address the main concern. Furthermore, other synthesis routes aren't necessarily better; you have to have a reactive organofluoride at some point in the pipeline.
In fact, that site tells us nothing, because PFOA is largely a problem for the workers manufacturing it, so telling us that it's not in the "finished products" doesn't address the main concern. Furthermore, other synthesis routes aren't necessarily better; you have to have a reactive organofluoride at some point in the pipeline.