Hmm... No.
Fallout: New Vegas do got some of these (Government and Disguises come to mind), but not all of them.
Hmm... yes.
I am going by memory here:
You mean to tell me there were no stealthy spells/items/potions in Oblivion/FO/NV? Oblivion alone, go back a few hundred pages on this very same forum and see all the threads about 100% invisibility; in FO and NV , the Chinese stealth suit alone...
You mean to tell me there was no government in Oblivion/FO/NV? Same empire in Oblivion and Skyrim; FO had The Enclave, NV had the NCR.
You mean to tell me there were no pets in Oblivion/FO/NV? Oblivion had porkchop, FO had deadmeat, FONV had K9 (or whatever the name of the cyborg dog was)
You mean to tell me Oblivion/FO/NV had a very short list of ingredients?
You mean to tell me Oblivion/FO/NV did not have locations not showing on the map? Oblivion had the abandoned house, FO had Rocktropolis? (don't remember the exact name), NV had a couple, I just don't remember the names right now.
You mean to tell me Oblivion/FO/NV had no couriers? Messages were delivered to you in Oblivion by couriers. In NV, YOU were the courier, and there was an established mail system. Besides, having a "courier" does not necessarily mean there is a mail system within the game. The only game with a mail system was NV.
You mean to tell me you could not set land mines (traps) in FO/NV?
So, now that I have gone through these, the OP is not stretching it a little, the OP is stretching it a lot.