Pat, Yes I did leave off some key words. Sorry, but I was posting from my phone and it's just not as easy as the computer.
My point remains, you've started a lot of threads that call into the question "why not more" as it pertains to modern designs. Even from my easy chair, seeing pictures of newer courses in this forum, and the aspect that sticks out is how main stream designers are using center line bunkers more and more. Hurzdan and Frye, Brauer, and of course Hanse, Doak, C&C, Devries etc. are building them.
So when you ask your general questions about the design world, without frequently leaving the cramped quarters of the east coast, it just seems myopic. That was my point.
As TP, states, they are likely being built more today, than any time in the past.
If you want to talk about the improper use, you need look no further than the size and scale than Jacks' on the 9th at Sebonack.