Beags, I believe that personal circumstances should be material to posting priorities, but I would agree that they should not necessarily disadvantage others' needs, including those of singlies. CEA is (increasingly) not for everyone (perhaps more so later this week!) and we should consider all needs wherever possible.
I was as annoyed as anyone else at those orderly officer and QRA rosters that seemed to have feature a preponderance of the latter at the least popular times...