He has clearly wounded you, but know that he makes sense.
If you employ people who are heavily into games, they will only want to remake something they've played in the past.
That is how boring clone games are made.
The best and most interesting games have often been made by people who don't play them.
Same with films, do you think all the directors and actors watch films constantly?
If you work at a cake factory you tend not to eat that much cake.