That is exactly what will happen, so why would you do that?
The result will not only be a disincentive to use new technologies, but a disincentive to build products with an efficient architecture in terms of lines of code, and in particular a disincentive to abstraction.
Maybe some product will become a hell with millions of lines of code that no one knows how to evolve and manage.
Has anyone else tried to replicate their claims?
And when things don't work they call people like me, to try to understand the performance problems of something poorly defined and worse written.
I like programming for problem solving, I don't really like writing tests, but that's personal taste, a lot of people like to just use PowerPoint and Jira and tell others what they need to implement, but these people are not software developers.
I don't really like maintaining tests, it's often a lot of code that needs to be understood and changed carefully