Look, I'm a big fan of OpenBSD (and use it myself), but journaling filesystems are many decades old at this point, and they have very clear advantages. One is not to have to sit through an excruciatingly long fsck after a power outage, with a real chance to lose data. This is not an esoteric scenario.

OpenBSD will be better once it adopted a journaling filesystem, until then nobody claimed it's "bullshit".

Is spinning rust esoteric now? Is fsck esoteric? If so, when did that happen?

In 20 years of running Linux on spinning rust I've not had to fsck. *Knocks on wood*. My first Linux FS was ext3.

Correction: I realized I've run it in vain attempts to recover SD cards. It always failed.