Then why even put Metro on if they are striving for only half a level of perfection? Why not wait until they've got it solid before releasing?
What would make me very pleased is if they delayed 6 months to get it right rather than rush it out.
To put it another way, I'd much rather have bumpiness shipped on day X rather than a delay to clear up all the transition bumpiness and ship 6 months after X. Although I'd like to see updates that fix the transitions come out a 8-12 months after release.