Yep prio is difficult on this point. I'm more technical so to my point Shopify is more important because it can attract more users and clients. Animations are possible right now with a bit of CSS and JS.
Even if you consider Webflow, best animations are build with GSAP (so we have to code). If it's just for some animation like basic scroll animations I think it would be better to have some templates / library with some examples that users can copy/paste.
Like you said, a lot of users needs slide, fade, scroll animations... which is pretty basic. If you need to go further we need to code it.
I think it's gonna be a lot of work for your team for some pretty "basic animations" for 80% of users.
It's just a point of view, it can be challenge. To my mind :
- Shopify integration (=> e-commerce = new clients, new users)
- Component Editor and shared library (=> dev experience)
- Content Editor Experience (=> easier to use Webstudio with clients)
will give more power to Webstudio. I'm open to discuss this, I know it's difficult to make prio.