I actually started watching games in 4.6
I rarely if ever watched games in 4.5 in the past 18 months but since the switch to 4.6, I've found watching the games has helped me understand the new version better.
Rarely do you see passes over 20 yards and passes over 30 yards are as rare as a unicorn. You need every bit of 3 downs to get 1st downs and if you don't have a 4th and short rule...you are screwed....there are so many 4th and 1 or 2 plays where I see punts but if you want any chance...make a rule to go for it...even in your own territory (within reason).
This watching games will go away just like it did with 4.5 eventually but for now it helps with my gameplanning.