What bothers me the most about this article is that the tools that attackers use to do stuff like find 0days in code are the same tools that defenders can use to find the 0day first and fix it. It's not like offensive tooling is being developed in a vacuum and the world is ending as "armies of script kiddies" will suddenly drain every bank account in the world. Automated defense and code analysis is improving at a similar rate as automated offense.
In this awful article's defense though, I would argue that red team will always have an advantage over blue team because blue team is by definition reactionary. So as tech continues it's exponential advancements, the advantage gap for the top 1% red teamers is likely to scale accordingly.