I've worked for Amazon for 4 years, including stints at AWS, and even in my current role my team is involved in LSE's. I've never seen this behavior, the general culture has been find the problem, fix it, and then do root cause analysis to avoid it again.

Jeff himself has said many times in All Hands and in public "Amazon is the best place to fail". Mainly because things will break, it's not that they break that's interesting, it's what you've learned and how you can avoid that problem in the future.