Nostradubois and the Failed Foresight of the affair that cost $50million Bucks

I am still obviously disturbed by Camille's dinner party episode, so much so that I am still pondering it, stupid as it was, weeks later.  I just thought of an obvious question though, as to how Allison could claim to be such a powerful intuit when she did not zap into Kelsey Grammer's affair at the time.  I mean, he was probably bonking Kayte Walsh in New York simultaneous to the dessert course in Bev-Niner.  Shouldn't she, having worked so closely with the couple, picked up on what the National Enquirer and any self-aware wife would have already noticed.  Just sayin'.......