Is there anybody else that is disappointed by the matter that not all houses/structures are able to be explored inside?

You don't really know how many can be, though. There's areas in other Elder Scrolls games that you can't just walk into either.

Lets not make a big deal out of nothing just yet!

I'm not creating a bloodbath of a scene here lolol...I realize this happens in previous titles as well...but at most the max of buildings being purposely designed as scenery in any of the ES games are five, and that's just a maybe...it's not going to stop me from turning my bag of flesh into a sewage Swiss cheese smelling soul, 24/7 TESO or go home...