There's no apparent lack of one year MBA programs, but they don't seem to be discussed often enough. Is it overall not ideal to rush through an MBA program like this, or does it really depend on the student and the institution? Which factors tilt the scale here usually? Thanksss!

There's some comment here on that: https://find-mba.com/mba-faq/which-kind-of-mba-program-is-right-for-me A longer MBA will be better for someone with no prior study in a management field, and who wants to change career. A shorter MBA is a better fit for someone who has relevant prior study or who wants to accelerate in their current path rather than change.