Myself, I could support that idea.
However, it would not go over so well with some.
There are those who made accounts just to siege, rather than their mains (as their mains sucked at sieging)
They might be a bit upset.
But I can also see many supporting it as well.
Tough call.
EDIT: some who made the siege alts may like this, too, as now their mains could siege more effectively