Stop looking at wrestling as if it's trying to be kayfabe. The stories are most often kayfabe. But the spots aren't. The spots are there to increase your entertainment. The stories there to make you care. Just because they set up a ladder and a table on top of the cage doesn't take away from it.
Story issues? Fine, they should explain everything. But having a ladder on top of a cage? Is that really so much different than a sledge hammer being under the ring? Or a barbed wire baseball bat being under the ring?
If you need everything explained spot-wise, then how can you enjoy matches at all? They are nothing like real fights. Why would someone go on the top rope, do a little dance, and then do a big flippy-de-doo in a real fight? If you can accept that, I ask you to accept ladders magically appearing on top of cages.
You'll enjoy wrestling a lot more this way.