You're right it should not have, that's why it is strange to see a Clean Architecture project template in github starred this much and used everywhere. That article was addressing those.

We can structure our projects independantly from what architecture we use (Clean + Vertical Slicing for ex). The point was to not just add layers to "follow the clean architecture principles".

There is a bad side of everything and we always have to think and adjust depending on our usecase. That was the bad side of stretching those principles to the fullest without actually needing them ;)