Looking at Vite's own comparison I don't see a strong reason to switch that would impact most of my projects: https://vitejs.dev/guide/comparisons.html#snowpack
But also I don't use Vue and I don't trust CSS Modules yet [1] which is their other most impactful feature of Vite.
([1] It still seems like reliable Browser support for CSS Modules is still 5 years away at the current rate, if it ever gets accepted as a standard. I don't think there's any obvious current objections and few browsers outside the Chromium hegemony to even really object today, but it's still one of those web standards that smells to me pessimistically like "it's never going to work right cross-browser", and even if I were less pessimistic about it, I prefer not to use them because I think they bloat CSS and subvert the intent behind cascading. At that point I think you might as well just use CSS-in-JS and that doesn't have to wait on web standards that may never arrive.)
I tried out Vite and it was a much smoother transition. As you said it seems to have more mindshare now and I would guess that is because the out of the box experience is better.