[Griefbringer]

Would there be much of practical benefit for such?

Personally, I have found it much more beneficial to deploy obstacles well in depth, rather than trying to cram a lot of them in a single hex. For example, I only place one points worth of mines in a single hex, and I do not usually place mines in every hex (thus leaving corridors for my own forces to pass through as necessary). However, I will compensate for this sparsity by laying the mines in depth, having formed mined areas up to ten hexes deep. Properly covered with MGs, anti-tank weapons, snipers and pre-plotted artillery, these areas can be quite challenging to pass through.