My opinion is the following:
[...]
- The reason why current web UIs are not sufficient for Linux kernel
is not applicable for Emacs. There are a lot of independent groups
involved into kernel development while Emacs does not have such
fragmentation so flexibility in respect to groups is unnecessary.
I suspect that people who think this have never tried to follow, for example, gnus, CEDET, or org development as part(s) of GNU emacs. These are more common in the Linux kernel, but the core motivations exist in both projects, and it would be great to have improvements even if they aren't adopted by both.
Hope that helps,
~Chad