This is a General Topic ain't it? Also, because most sprite movies uses other peoples sprites ie Nintendo, etc, the artists would be quickly ridicule as being lazy. Sprite movies that get frontpage and become ridicuously popular(SMBZ) will automically be criticized for not using original graphics and being lazy for the sprites. I agree that it's lazy and that it's a poor excuse to use em just because "you can't draw." We all suck at drawing, that's why there's a thing called practicing, but if you do it well, a random sprite fight could be well liked by everyone.
*cough*MK VS SF 3*cough*