Yes, in the same way that taking down an active gunman with a loaded weapon is future crime prevention.

What about possible future software update to any hospital system? Should we preemptively stop all of those?

If the manufacturer isn't adequately testing for regressions that kill people, then yes, we should block those updates, and use the software the device was certified with.

gl getting anything done with a government agency defining adequacy of your software testing. here in canada government employees cannot get software that pays them salaries to work https://en.wikipedia.org/wiki/Phoenix_pay_system