Do you know of anyone whose centre speaker is not at the same height as their L/R speakers due to display/screen constraints? Or their surround speakers aren't at the optimal angles due to room constraints? Just as level matching and time alignment can 'virtually' place all your speakers the same distance away, speaker remapping can have all your speakers placed at optimal height and angles.

Of course, how they go about doing this is what decide the usefulness of the feature. If part of the technology involves bleeding some discrete centre content into the L/R speakers in order to use phantom imaging to 'virtually' lift a low centre speaker, then that could lead to a less stable centre image for off-axis listeners.