I guess we have advanced intellectually and emotionally by the time we reach the future Gene Roddenberry envisions. Not too many of us could have rejected what John DeLancie offers Commander Riker. I'm not sure I would have.
Q with the Enterprise, its Captain and its crew are like behavioral lab rats in his capricious experiments testing human nature. DeLancie as the capricious immortal being makes his annual appearance on TNG for the first time since the pilot episode.
Put simply he offers Jonathan Frakes a chance to become a being like him and Frakes seriously thinks it over. But time and reason and the behavior of others of his comrades makes reexamine the proposal.
I don't know anybody today who would refuse. Let's hope that in the future the human race gets to be as intelligent as the Enterprise crew.