That blog is nothing but a person relying on press reports which don't even have their story straight on this. And then we have the title of this thread which is incorrect as I noted earlier.

This deal is not a done deal and still FAMs will not be permitted on all or even most EU flights even next month or the month after. The EU member states' equivalent of sky marshals seem likely to be approved but even that is not a done deal yet and will not be until March (if ever).