Right, no way two people could ever have similar ideas at the same time.
I think Ron Moore and JMS are just big nerds who always wanted their scifi to be more serialized.
Even in episodes that didn't take place on the holodeck, the Voyager crew seemed to spend every waking moment on the holodeck. I'd say TNG and Voyager are equally guilty in that regard.
Voyager had few Holodeck episodes yes of course.
TNG had many many holodeck episodes and are far more boring :P