Why does the level end before all the candies drop on the last move?

Why does the level end before all the candies drop on the last move? It used to be that when you made the last play it would continue until all matches had been made. A while ago it started abruptly bringing the banner up trying to get you to spend money on more moves even though it appeared that there was the potential for more matches to be made. This time, it brought the banner up before the column of candies even dropped. I realize that the point is to dry to convince us to spend as much money as possible, but it would be nice if it actually finished the last play before ending the hand.

@atcsim Hi and welcome. Ihave noticed this on another king game ai play but not on candy crush saga yet. Think this has been done to speed the process of moving the game along but not something i like hard to see if you want to continue a game

Thank you

It currently happened on level 415, but it happens at other levels as well. It would be great if an honest explanation could be provided. I realize though you can't win them all.