> Today I’m proud to help introduce a service that would have made my life from 2015 through 2019 a whole lot harder
Surely the author means easier?
The blog says they were trying to test an attack against a secure system and failed until they used an NTP vulnerability to roll back the clock on the PC. If NTP was secured against that vulnerability, their test attack would have failed and made their project more difficult.
It's harder to publish papers that attack a system that is already secure.