I would love better animation support, I hope Painter gets it. There's a huge gap in the market for decent animation software. Most animation works I know of have been created by in-house tools.
I would llike to get my feet wet with animation, I know nothing about animation, but I would love to get started.
The fact Painter sort of ignores animation in Painter is the reason I haven't started with it, I feel insecure using it since if there's no support for it, I am affraid I will learn something that will not have long term support. I hope they focus a little bit more on animation.
Things happens all the time. Since you wrote this 5 years ago there has been a lot of things happening on the 2D animation software front. Not only TV Paint and Photoshop got it, Krita got it, Clip Studio got it, Sketchbook Pro got it, Open Toonz got it as well as Toonz got it, RoughAnimator got it, Pencil 2D got it and soon Animation Paper got it (and some moore)...