It depends on the officer issuing your AIP. Usually they give exemption after thoroughly review your case and approve AIP.It’s the stage where they request you police certificates, medical,financial information. I didn’t request for exemption, officer issued on his own behalf as he got satisfied with the facts and medical proofs I have attached in H&C arguments for eligibility pass.
In your case it looks like you were temporarily ill or disabled. If you were working and financially dependent before and have a plan for returning back to work/school once healed then that is likely why you go the exception. Temporary illness/disability is treated differently than longterm illness/disability especially in the case where a person is also dependent on government financial support. Each H&C is different so it is hard to make generalizations when there at multiple factors that go into approval/denial but in general for H&C applications not being financially dependent on the government and working/studying or even volunteering (if you don’t need to work because you have significant savings) are big considerations