The pull request as a mechanism for "here are some changes to look at" for a small project isn't the same thing as "Here are the USB stack changes for the 3.4 merge window".
The kernel has a mature, rigorous and well-defined development process[1]. Things that don't fit well into that model just aren't going to be successful, even if they work well in other contexts.
It's also worth pointing out that the "pull request" in question here was a 2-liner addition of a USB device ID that should have gone to a subsystem maintainer anyway.
The kernel has a mature, rigorous and well-defined development process[1]. Things that don't fit well into that model just aren't going to be successful, even if they work well in other contexts.
[1] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git...