If everything around you is unfamiliar and disorienting, even the passage of time from day to day and year to year, eventually you've got nothing at all to cling to as normal. Right? So people will be more likely to cling to whatever is regular and dependable, and in this case, that would be Acumen. It's a way to breed loyalty.
[After a little pause.] It's just a theory, anyway. Without any proof that time itself is moving differently here, it's hard to say.