Joe: you point out something that is worth thinking about. It is not a bad idea to play old lines from time to time. This move was the main line about 30-40 years ago. I dare say it has been superseded since. In my game against charleshiggie earlier this year, I played 7.Nf3, which was considered somewhat inferior back then. I have a copy of Bill Hartston's book on the Grunfeld, and it barely mentions 7.Nf3.

Charles, maybe a stupid question but Im wondering for what reason your opponent did not block with Bd2? Did he want to swap off the Queens?

No, it is an excellent question. Yes white can play Bd2 to avoid the exchange of queens - there are some interesting trappy lines in this, such as 11. Bd2 Qa3 12. Rb1 Nc6 13. d5 Ne5 14. Bb4 Qf3!! and white gets mated if the queen is taken.

Still a long way from an endgame....

I agree with Charles, though. The game is much simplified already, White has a firm hold on the centre and a lead in development. I would also have taken with the King. The final consideration is time: White loses no time with his bishop, and the rook are at once brought into contact. White has, in my view, a fine game here.