You'd be surprised, then. Some managers don't know squat. I rolled onto a project once and found that an entire application was being delivered as a 300MB ActiveX control, to run in a browser because that was cool and "cutting-edge" at the time.
Looking at the code, I found it was using UI elements for data storage and other such nonsense. A colleague and I had to tell the manager that the entire thing had to be rewritten. I'm not sure he actually went pale, but that's how I remember it.
It is EXACTLY the type of people that are hired to make decisions, because of either nepotism or impressing with portfolio filled with overcomplicated, 3.js frontpages.
The tech stack is almost always decided by someone in leadership that has no developer experience. Or by the consultant company that will chose the most complicated and difficult to maintain stack because then they can invoice more and will win all future contracts. The trick is to hire someone that is not corrupted by money, someone like the author of this post, who cares more for the users then how much he gets paid.
Looking at the code, I found it was using UI elements for data storage and other such nonsense. A colleague and I had to tell the manager that the entire thing had to be rewritten. I'm not sure he actually went pale, but that's how I remember it.