I hope this is a reaction to Framer's rapid development in Frame Motion (https://motion.dev/). Webflow and Framer are competing as site builders, so giving the animation library to everyone is like Meta giving out React.
I’d say it is too little too late. Motion already has the lion’s share and anime.js is another strong open source alternative. GSAP was quite big in its day but why would anyone invest in it today? Also Motion is no longer part of Framer.
The community for GSAP is still amazing and there’s years of forum posts for most questions you might have. Motion and anime are great but I’m skeptical that either have a lion share relative to GSAP.
