I see that is an issue with many people, but now with github adding support for stacked PRs, I guess that would change

This is good feedback, thanks. The next version of the tutorial will certainly focus on stuff like this, as I agree it's really important to teach people.

locally? sure. stacked changes in jj are great. but the moment you push to GitHub, the review UI still thinks in SHAs. a lot of the pain just moves from the author to the reviewer.