I don't know if that's how I'd characterize it but it is easy to fall into the trap of trying to be productive but spending more time on your productivity system than actually getting work done.
Agreed. But a good system ensures that I get things done. Even if you spend more time on the system than the things you do, if you are getting more done that needs to be done it is a win for the system.
Of course systems that get you to get done what needs to be done without all the systems work are better. Whatever works though.
I would say that Roam Research inspired a mini-notetaking-boom! The reason is that it's based off a good idea, but it's very much a walled garden and the $15/mo price is very clearly aimed at attracting institutional licenses, rather than individuals.
The folks at Athens Research [1] are creating an open-source alternative, and I expect they will soon eat Roam's lunch.