IMO there is inherent complexity in the task of creating dynamic user interfaces and reactivity/signals/directives are different tools to deal with this complexity by imposing different mental model on top.

In any case, if Imba offers a new approach it fails to communicate this on the landing page and focuses on code compression instead. To me it reads like Imba is a re-pack of status quo approach (React + Next.js) that focuses on compressed syntax. This is actually a good thing, I just wonder, whether a new language is necessary to achieve this.