1. At 6% women—and, therefore, 94% men—I would say the winners' pool is egregiously sexist.
2. An "old boys' club" is an idiomatic expression referring to exclusive, undemocratic and even unmeritocratic social circles. Not, necessarily, literal "boys."
So, in light of those two premises, I don't feel your objections carry any legitimate weight.
I would say that the noble price has been given out for a long time, if recent rule changes lead to more female winners, then this would not be visible in absolute percentages of all winners. By the definition of "more men than women/nb won the price" it would continue to be sexist even if the exclusively nominated women for several years in a row.
1. At 6% women—and, therefore, 94% men—I would say the winners' pool is egregiously sexist.
2. An "old boys' club" is an idiomatic expression referring to exclusive, undemocratic and even unmeritocratic social circles. Not, necessarily, literal "boys."
So, in light of those two premises, I don't feel your objections carry any legitimate weight.