The IETF proposal you linked is not for a backdoor. It's IETF refusing to set rules on future IETF standards including, or not including wiretapping. i.e. It s

The IETF proposal you linked is not for a backdoor. It's IETF refusing to set rules on future IETF standards including, or not including wiretapping. i.e. It states that whether a standard includes a wiretap or not is irrelevant to it being an IETF standard.