You're talking about big commercial planes. Yes, you can alter procedures here and attempt to prevent the same thing from happening again. Not in general avia

You're talking about big commercial planes. Yes, you can alter procedures here and attempt to prevent the same thing from happening again. Not in general aviation. You're not going to get all the Cessna 172 owners to modify some part of their plane to make it better and avoid some incident where some yahoo private pilot did something dumb and crashed. It's hard enough just getting privately-owned aircraft to be properly serviced. Many of them are many decades old and quite primitive. You're not going to improve "the whole system", the HCI, etc. in some airplane made in 1940 or whenever. Finally, attributing an incident to "pilot error" doesn't automatically mean that there weren't contributing factors or that things couldn't be done better.