Ostensibly DKMS can be interpreted as jank, for situations where you upgrade your kernel, zfs integration fails or blocks that, and now you are in limbo. At least, I can imagine this being a complaint from someone.

I can see that. I compile ZFS directly into the kernel so I've never really dealt with DKMS issues.

I certainly would qualify having to compile it for your kernel as jank.

It's not a different step to have to compile it for my kernel. I patch it in and after that it's a transparent part of compiling a kernel in total.