It’s always easy to criticize an EMT or paramedic when they screw up, perceived or actual, in a situation.
It’s not too easy, but still plausible, to criticize someone when your buddy tells you how dumb the EMT or paramedic screwed up on a call.
But when you weren’t on the call, and your buddies weren’t on the call, and you only heard about the call because it was on the news, and you happened to go to the same hospital several hours later, where you heard fourth-party stories of the situation, you should keep your mouth shut.
There is a time and a place to to discuss calls. That time is usually scheduled, and the place is usually in a conference room. That time is certainly not the choosing of a person who wasn’t even aware of the situation until they turned on their car, and that place certainly isn’t the water cooler.