Actually I absolutely love the sections behaviour like they are now!
It's useful to see what't inside without losing the perception of the true lighting condition of the indoor spaces.
Maybe the developers could implement an option to cull or not the geometry behind the plane!
BTW, I've read in several posts in this forum that most of the issues regarding difficult situations to be rendered are "caused" by the realtime technology, limiting some calculations not to affect the speed (accurate reflections, section cuts,...). I am wondering if a solution could be to export the CURRENT model configuration whenever the user chooses ad additional "photoreal" option (the name is made up by me, substitute with whatever you like): you will have an extra export time time but you would be able to render the scene not realtime, so avoiding the limitations which block you guys.... I'm talking basically for still images, since I don't do videos atm....