Strawman argument sometimes is used to draw out a point. You can not confidently say your security solution is infabiable and nor should you. The article is just a good runbook of things and less a guide. But if you are working on the cloud you shouldn't go using old management methods like they belong in your network.

You would not believe how many companies are dependent on patching through users through VPNs in order to access remote hosts. I mean some have to because of no other solutions like managing their own on-prem. I kind of would be interested in AWS access management capable of being implemented within an on-prem.