I played almost exclusively on NT 2025 24-7 and I am ok with this. Mostly because, you know, I didn't pay an extra penny for the map. And it wasn't a preorder bonus, it was included in first run copies of the game. Lastly, idk of any way they would have worked around it. If they take the 24-7 playlist down and incorporate the map into all playlists, then no one will ever get to play it anyway because:
a) they'll have to tone down the % of times it appears just like they did with Blops 1 and
b) in the rare occasion it is set to pop up for vote, it will be discarded because someone in the lobby will not have it
They could have made the playlist unranked but that would have pissed off a lot of people who only played it. And you can't tone down the XP without drastically affecting the game. So in this playlist only, you'd have an entirely separate set of XP and streak reward triggers? Doesn't sound logical.
And I would agree with people who have been saying it will be in a future map pack but while they are saying it purely in a negative sense (oh those greedy Acti bastards!) it just makes good old common sense to me. Millions will buy the map pack, NT 2025 is included, and you then don't run into problem b) listed above because way more people have it.
I do hope they come to their senses and keep the 24/7 list up though.