Economic Mechanic Good or Bad?

Basically wanted to see other's thoughts on TNO taking away the ability to make civs or mils via the construction tab and instead basing it off your GDP number. I am a bit iffy myself. Once you get the hang of it its not to bad though at the same time I think adding this mechanic into hoi4 does not really work as its something the game was not really meant for and it feels like they are using an ancestral blood memory from TNO's Victoria 2 days. One hand its interesting to try to simulate an economy and it can be interesting. Though it can also be annoying depending on what type of leader or nation you get shafted with.