I agree that it starts potentially too easy, but at the same time, I'd rather someone less experienced/more casual to be able to learn to play the game with it being a bit too easy for the first 30 seconds, than losing in the first 10-15 seconds 10+ times in a row then giving up and writing "game sucks, too hard".
Ideally I'd have a difficulty mode selection that would adjust the block placement time, the starting ball speed, and the score multiplier.