I think the problem is that once you consider "features" in general, it tends to diffuse attention from what is absolutely essential. Of course nobody can know

I think the problem is that once you consider "features" in general, it tends to diffuse attention from what is absolutely essential. Of course nobody can know what is essential. But someone with vision needs to kick everything non-essential into touch and pick something. My vote is for speed. Then again, I use almost no non-core features of any browser.