That's a fair point and I don't disagree. I guess my main point of contention was the implication that either a) ZFS wasn't stable on anything non-LTS or b) the Linux kernels themselves were unstable outside of a LTS.

What stable means in this case is subject to individual use cases. In my case, I don't find having to wait a bit for ZFS to catch up despite being on an EOL kernel to be catastrophic, but after having some time to think, I can see why someone would need an LTS kernel.