Kitties are nice.
R3dm4n, what Faterson was trying to say in his special and unique kind of way, is that there have been many suggestions such as yours. If you would type "Fade" or "Draw" into the search box on the right, you would see that "Shot Shaping" is in the works for future releases.
You are right, of course, that top-spinning and back-spinning the ball is helpful, but to get around that pesky tree, or to get to that difficult pin placement, we need to be able to shape the shot.
Have a nice day.