There are lots of things that could devastate you financially even if the medical situation is resolved.
Short term hospitalization, medications, etc. I know someone in good health that depends on a medication that would be $80k per year without insurance. Their health is fine as long as they take the medication 1x per month, but they need to take it for the rest of their life. As I understand there are some medications significantly costlier than that even.
Going without medical insurance is an enormous risk.