I'm kind of confused by the notion that Javascript execution times and CSS3 animations aren't part of the core functionality. I'm assuming they're not going to build their own JS JIT compiler and use v8 or spidermonkey. And while I don't see the necessity of animations, there's no reason to not put CSS3 as part of the core considering that every current major web browser basically supports its current form.

I do understand that the purpose of this browser is to be privacy-first, but what we don't need is a new browser that's just like IE6 in terms of bad web practices but with better privacy settings.