Talking about football is actually what makes football such a great spectator sport. Each play is about 8 seconds long. There's about 40 seconds between snaps and plenty of other breaks for subs, etc. The reason we all love spectating is the action but it's all the downtime in the middle of plays to talk, react and forecast. It's part of how spectator sports have become popular in the states. Baseball commentary used to be the biggest thing and likely the reason it was so popular initially on the radio. Football is more visual and took off with television and the analysts. Soccer and hockey don't have the same breaks and struggles in this regard. Basketball is kind of in the middle, i guess.
We love talking football. Heck, I read the comments on 11W and sometimes even comment on them. Then I'll go to someone's office down the hall and talk some more about it. I've never put on pads or played more than backyard football but I love talking and listening about.