>Or worse, they were doing some dark management technique of "well he's really hauling ass right now, if he makes the original deadline we'll be ahead of schedule, and if he doesn't we have the spare capacity"

As a business analyst who has worked a lot with executive teams at multiple companies, this is almost always the case (ime). Deadlines are only shortened down the chain, never extended. The assumption is that if it cannot be done then they will simply not administer any consequences and classify it as "not realizing the upside".

The only reason it is almost always and not always, is because sometimes a different thing pops up that needs to get prioritized first, so it is communicated that the first thing isnt actually as important as it was yesterday and this other thing is now the most important.

Now obviously I cant speak for everyone at all teams, but as far as boring corporate default behavior goes this is the safe path for executives. If your boss is doing otherwise, they are going out of their way to do it.

The takeaway as a worker is that you should not treat any business goal or deadline ask of you with the same level of care as you would a personal favor. When something really needs that level of care, your boss should pull you aside and break character and make it a personal favor to them, not the business.

As far as "Ownership" goes, it is just a pissing contest as far as I can tell. if you own a task but cant do the task, you just send an email to someone who can do the task so that the task gets done and you can report the task is done and get your ownership credit. the person who did the task was used as a tool in this regard. So high performing managers just try to get ownership of as much as they possibly can, as there's no meaningful difference between who sends that email.