I felt like the article did a good job of explaining the potential replacements, but failed to make a convincing case for why the perfomance benefits outweigh the simplicity of jQuery. There's a conversation to be had about balancing those two, but this post makes the implicit assumption that performance is king and never really addresses the tradeoffs between performance and simplicity/familiarity.
Wow, I've never heard of GSAP before but it looks really promising, if you want to have a detailed control of animations for your app. I'd love to hear both plusses and minuses from someone who is using it production code.