Not a big difference, but I note that this is without a waiver. There is a process for getting a waiver for each branch[1]. There aren't a ton of waivers issued - only between 50,000 and 80,000 [2]. But the DoD is reviewing what can be removed as disqualifying (at least 38 disqualifying conditions) and multiple reports have been issued signaling out ADHD and marijuana as potential criteria to eliminate[3].
Personally I think it should come down to the role and risk. There's plenty of jobs where you're not seeing combat or dealing with inherently risky or critical tasks, and thus shouldn't be held to the same standard as those doing critical tasks. Just as one obvious example, somebody with a desk job doesn't need legs.
[1] https://www.operationmilitarykids.org/military-medical-waive... [2] https://serialpodcast.org/maps/number-of-waivers-given-to-us... [3] https://www.rand.org/blog/rand-review/2021/10/army-enlistmen...