I'll agree with the sentiment but from a different perspective. From a sheer performance results point of view, it's hard to argue that 2:09:56 is not an outlier -- it plainly is -- but that doesn't mean that we shouldn't have expected faster marathon times by now.
One of the biggest challenges with assessing women is their comparative lack of depth, and the relative immaturity of the women's events, making some side by side proportional comparisons with the men problematic over these longer distances.
When Paula ran 2:15:25, there was no reason to think that other top women wouldn't have the potential to run comparable times. Yet what happened is that no woman even ran sub-2:18 for 14 more years, until Mary Keitany and Tirunesh Dibaba (who stopped twice) did it in London in 2017.
An important factor is the lack of depth, and lack of pace-making, turning most all marathons into a tactical race that started out too slow. Part of the reason for lack of depth is cultural, as it took longer for East African women to get support and opportunities to compete in larger numbers.
If East African women follow the same perfomance distribution as men, being several minutes faster than their non-African competitors, we could even be so bold as to predict that East African women had the potential to run 2:12-2:13s, before the era of supershoes, but simply never set off at that pace from the start.
When you consider the effect of supershoes bringing an addtional 2-3 minutes, then all of a sudden, a 2:10-ish performance doesn't seem so out of reach. It is only a matter of time when non-African women work up the courage, and get the pacemakers, and start surpassing Paula's records with the new shoes.