Comment by RunSet
> since it's so easy to scroll, you can always just do a little two finger scroll wiggle to have it appear
That changes the effort required to show useful information from zero to more than zero. Which, while it not be a great quantitative change, is an enormous qualitative change.
Like Chesterton's Fence, it was there for a reason.
"At last (and at least) we have reclaimed that narrow vertical strip of screen real estate on the screens eastern-most vestige! Now to find a good use for it!"
The true annoyance is that in many cases explicitly enabling them does not restore the original functionality.
There is an imbalance between the harms you're pretending to endure versus:
1. The trivial ability it is to resolve, and
2. The existence of an easily accessible user setting to enable the behaviour that you desire.
Fundamentally your complaint thus comes down to a gripe that the OS's defaults don't match your completely subjective idea of how just one of many OS elements should work.
Which raises such an interesting question, because of all of the UX behaviours present on macOS - this is your hill?