Absolutely. Pigloos, ramps, cuddle cups, litterboxes, litterpan kitchens, etc all take away from the usable space for the pigs. If too many "accessories" are added it becomes more of a maze then a large area where they can run.
Technically, in a cage adequately sized for the number of pigs, each animal should have a pigloo or cuddle cup/hidey and that's it, other then the space bowls and a reasonably sized ramp would use (a very wide ramp takes up too much space).
I'm not saying you can't have lots of stuff for the pigs, you absolutely should! However, the more you ad to the cage the bigger you need to make the cage. Each additional cuddle cup/pigloo/small litterbox needs an additional "square grid" of space. Large litterboxes/petstore cage pans need at least 2 sq grids of additional space. The cage is measured by unbroken space. Having some sort of wall or divider takes away space. That is why when people build a 2x3 cage and then (for reasons unknown to me) plop a petstore cage inside of that and try to post it in the gallery it gets deleted. The cage takes away from the inner, usable space. The cage would need to be added on outside the actual cage.
People can accomplish this by building second stories and lofts though. People will put kitchens and bedrooms upstairs in their cages so that the pigs have a large area to play and explore in but they have the additional space to add all of the "extra" without taking away the animals' living space.
In the galleries there are many cages that simply have too much stuff in them. Technically they could be deleted but we make an exception if they otherwise show a great cage and exemplary care. In all honesty it is better to have a few too many luxuries for your pets then not enough.