I don't see any actual temper lost here.
In one case he points out that someone is making commits that have messed up a file's indentation, and to stop doing that because it's messing things up (they were).
In the other case he points out that rust's default format rules are wrong (in the context of version control readability, they are) and asks someone to fix them.
Counterpoint: X11 wasn't designed with today's security needs in mind, and developers were building based on the assumptions that those security holes would remain. We don't actually want everything that X11 had, we only want the good bits.
Or to put it another way, the switch from X11 to Wayland = https://xkcd.com/1172/