This is simply wrong, both from a user perspective and a general research perspective.
Positioning a jailbreak like this as a solution to general vent shortage may be irresponsible if it leads to people trying to treat others instead of relying on doctors, but going beyond that is ignoring the good that's come from work like this.
Hacked up and jailbroken insulin pumps have been a thing for years, often to get increased safety over what manufacturers can provide: https://medium.com/neodotlife/dana-lewis-open-aps-hack-artif...
There's also a history of people unlocking and altering settings in CPAP/BiPAP devices in response to data (many providers treat them as set and forget devices and don't bother reviewing logs except for initial patient compliance).
Beyond people hacking their own devices, we've seen that security of medical devices wouldn't improve without independent researchers highlighting the flaws and driving them to fix them: https://www.cnbc.com/2018/08/17/security-researchers-say-the... and https://www.darkreading.com/vulnerabilities---threats/lethal...