Well there's a good mix of supporters sat by me. Loads of people on their own and lots of groups of 2 or more.
Ultimately your group bought their tickets at different times and, by luck managed to get a seat next to/ near each other.
I had a season ticket years ago and gave it up for while. When I got one for second time it was by luck one had come available right in the same seat but one row further forward.
I understand that current groups will want to sit together at Bramley Moore but I'm not sure why that should be at the expense of others that aren't affected.
This is, without doubt, the fairest way of dealing with it in my opinion.