I dunno, the animation, especially lately with BW is becoming more like the animation used in the movies. Still not as good, but that doesn't stop me from being impressed with it nearly every episode. Pokabu's fire attacks, Pikachu's Iron Tail, and the way the characters are animated in general has all stepped up from the original style. I can see where it would take some getting used to, but if you've slowly adapted to it over the years, as the anime's style progressed, the changes don't seem like anything too big.
I don't see how it's more cartoon-ish, though. Since for the most part, the animation is cleaner, but the art style isn't too different.