Will Deakin@stefanlindbohm @lewd there is "an implementation period" which is meant to give time to implement these, albeit in my opinion, minimum standards.
One of the big complaints by some is "how little time there is to make these changes". Despite the fact that this has been proposed for at least three years.
The European Agency for Railways (ERA) published an introduction to the TSIs, including TAF and TAP, and would expect them to do the same for the TEL TSI. Just not yet.