Agree with all of this. I think the reason you're getting so much pushback is that you started this conversation with "not sure where the problem is". Clearly you do see the problem - AWS encourages beginners to get going as quickly as possible with these tutorials and the free tier, but then makes it difficult for those users to avoid unexpected charges. They should either stop encouraging beginners, or start offering easy ways to protect yourself.
That statement was related to the sentiment that there is no way to protect yourself or a team of people from AWS pricing, people were implying that there is no tool to help you limit or track expenses, which is not true, since there are plenty of tools to do that.
Anyway, life gose on, and it was overall a good chat :)
