Only a couple of hiccups. I saw a review in the CSM of the Chicago show that said the coupling of A Day in the Life finished with John's Give Peace a Chance "felt crowbarred" and I would agree. Likewise, in one encore, he brought some folks on stage, four women dressed in Sgt Pepper jackets (ironically, 3 from the UK, 1 from Australia; go figure) was fairly lame. Both those were the only misses.
I read the same article so I wasn't surprised when it happen and it wasn't as jarring as I thought it would be. Probably because A Day in the Life/Give Peace a Chance are not my top 2 or even top 20 favorite Beatles/John Lennon songs, so I was pretty meh about it overall. In other words, it didn't distract from my overall experience.
About the folks he brought up - I assumed at the concert that he did that at every venue - but he doesn't. Went to his website fan forum and some were ticked because he didn't invite fans up in NYC and Chicago, so I guess it's not part of the show. When I left some fans were getting their picture taken with the women. (BTW, the fan forum on McCartney's site has some pretty die-hard fans or super fans who follow him on tour, some even know the tour manager personally. I wouldn't be surprised if the four women were super fans who had the money for the travel/tickets plus understanding significant others and jobs to be able to do that.) What did you think of the lady who had Paul sign her arm/shoulder (she later had it made into a tattoo)? I thought it was pretty cool despite not being that crazy about tattoos in general.