I think 'needs' is incorrect. Architecture/real estate photographers capture such images today, and that feature doesn't yet exist.
I think you are 100% correct, and to the specific case use suggesting more DR will 'fix the problem' illustrates a complete misunderstanding by the first poster (who has me blocked so won't see this anyway) of how the eye processes high dynamic range scenes and how increasing camera DR won't actually get the image he thinks.
Essentially the interior has a DR and the exterior has a DR, in HDR the exterior will almost always be several stops over exposed in relation to the interior, this means the shadows outside will be higher than the upper midtones inside. Using curves to 'correct' this so it more accurately represents the scene in a 'natural' way, that is how the brain processes the information from the eye, will always look odd, or HDR. The better way, even with cameras capable of HDR capture, is to take two exposures (though often many more) where you want them to be and blend them in post. This is the only way I have found to make the interior and exterior images look natural and where you have complete control over the respective brightnesses of the interior and exterior.
And to be sure there is no one right way, sometimes blown out exteriors for the mood or because of the view are the right way anyway, whereas sometimes showing the exterior view to full effect is the entire point of the building.