Why does NJPW not have ringside seating?

For clarity, I am referring to NJPW's events in Japan, not NJPW of America, which does do ringside seats.

In Japan, their setup has two concentric sets of barricades creating a sort of no man's land between the ring and the closest sections of floor seats, with the commentary and production desks being the stuff that's there, but not much else.

I'm curious as to why NJPW has this setup instead of seating fans closer to the action.