No, it would be downright scandalous this late in the game. Preloads start this week.
I think the 10 month delay they did was pretty generous to the dev team and gave them time to execute on their goals, and they announced the final release date pretty late in the cycle to make sure they were confident.
I am sure there will still be bugs and the like, as we would expect from any game of this scope (let alone from Bethesda), but they know where the game is at and they're ready for the world to play it.