This is hyperbole for sure - there are some amazing things that Figma does and I love using it, but it's still missing a lot of things that Sketch and Illustrator have. On the plugin side which is what this article was about, Sketch is leagues ahead of Figma. File system access and native app functionality mean that plugins can go beyond just the constraints of a browser. Even in the web constraints though, Sketch is still leading in the support it has. An example of this is an events API - Figma doesn't have any way to listen to insertions of components and react accordingly to it. This vastly limits the scope of what Figma plugins can do - they can only be proactive, not reactive. Often we want plugins that just work seamlessly, and right now Figma doens't support that.

Illustrator on the other hand is still vastly better at what it's named after - illustration. Figma has great basic vector functionality that will cover 99% of your design needs, but little around illustration needs.

I'm really excited for Figma and what comes out of it, but it still has a long way to go to catch up. I think it has a better foundation though.