Yes. Improvement or not, a thing not working the way one expects means one has to do more work to figure something out. And in case of pid1, this is never a time spent productively.
I'm all for improvements and I love updates of software, but what systemd usually does is ideology and destruction in the name of "new". Like, we have had cron perfectly working for _decades_ until one man told us we were all wrong on that.
> One of the features of systemd that is most controversial is the option to kill user processes when the user logs out. That initially killed screen/tmux/nohup processes too.
Killing processes that the user clearly did not want killed is a regression.
Reading the rest of article it seems that its fixed but made things a lot more complicated than "unless you deliberately start things so that they keep running when you logout they will be killed when you logout". Am I wrong?
I don't think it's a regression at all. It's been standard advice for decades that logout-login wipes user processes for updates, therefore you don't need to restart.
I'd argue the opposite is true: linger is surprising, and I turn it off.