That's cool. I think at this point we're just having different interpretations of the various adjectives such as "good", "master", "phenomenal" et al and how these adjectives should be reflected using BRP percentiles! To me "good" translates as about 50%, and thus a "phenomenal" stat of 16 or more would not be required to achieve this level...in fact, merely a non-phenomenal stat of 10 could attain 50% using my houserule...
Ultimately, my opinion is that talent should not only affect how easily one can pick up a skill, but also how high one can eventually develop it. (e.g. Einstein would never have been able to reach Physics 99% with merely a 15 INT—and, inversely, I defy you to show me someone with an INT 10 who could come close to the same level of expertise merely through "hard work"...not gonna happen).
In any event, I'd venture to say that we both agree that the beauty of BRP is that it's flexible enough to be able to fit differing visions.