Seriously, it is stretch to disregard something because it comes from either a traditionalist parish (whatever the specific term is defined as) or a more modern parish (whatever that is).
Not once has the Pope said “disregard everything Traditionalists say.”
Take the teaching on its merit and agree or disagree based on Catholic teaching. They are both dioceses in good standing full of faithful Priests. Simply arguing the Church has never endorsed a particular phrase is silly. Saying they oppose it is not. There are nuances within dioceses that are guided by their Shepherds, to meet the needs of their flock. That is their role.
Honestly, the argument over semantics seems silly. The Church is currently rife with imprecise wording, and yet we usually told not to get “hung up on it”.
I have always assumed the NFP with a contraceptive mentality implied the existence of those who believe simply using NFP abrogates them of the responsibility for discernment about God’s call for their family, its size, and makeup. While the act itself is morally licit, the phrase to me always implied that its use required prayer and discernment about God’s desire for each of us.
A couple could use NFP without ever once thinking about God or His will, and while they would not strictly be using contraception, they would not be fulfilling God’s ultimate desire in His relationship with them.
Admittedly, selfish motives for avoiding children DO exist. The Church is not going to go line by line on these, because at the same time, these motives are personal and need to be examined with a well-formed conscience. But the Church is not going to disavow that there are couples who can avoid children for selfish reasons, but as we see on here, it becomes a dicey proposition to say who is or isn’t guilty. The Church leaves it to us to determine, and if we do not, we may be able to convince those on the internet or in real life, but God is never fooled. He knows what is in each couple’s hearts.