I have surpassed the requisite 90,000 points with moves left over, but the game continues and bombs continue to count down and get a level failed even though I have enough points.
It's because this level doesn't end once you've reached 1 star, if you tried to get 3 and the level ends because you've already hit the 1st star with plenty of moves left, you'd be pretty miffed. This level only ends once you have used all your moves!