You are right it's not a direct argument, but it's an anecdote that supports my base point. Letting skill be the deciding factor.
But is BS Guards nemesis class? I don't know what a guard is supposed to loose against? Had the BS purchased T2 armor? There are so many variables in this statement. But the statement agrees with my base principle, let skill be what it comes down to. And removing pots would help skill prevail in other cases where there isn't an as big skill difference.
I would want a T3 geared character to loose to a T1 player of equal skill if that is the nemesis class.