Nobody can argue that sports have not changed over the years. What used to be very basic and dependent solely on physical acumen has become high tech and much more about strategy. That is not to say that talent is no longer necessary, but there is so much more that goes into winning a game than there used to be.
Everything from training, equipment and the athletes themselves has changed. Obviously this has not made for less participants or fans. Everyone continues to love their favorite sport just as much as ever. For the most part, the changes are a good thing. For example, rule changes make the sport less dangerous for the players resulting in less injuries. This makes the players happy, the team owners and coaches happy, and even the fans happy.
Conditions have also changed with more and more stadiums being built to protect the players and fans from the weather. A game in which the players are difficult to discern under all the mud is certainly no fun to watch. It is likewise difficult for the players to perform well. Not that inclement weather seems to keep many fans away, but it is certainly more enjoyable to not sit in the middle of a snow storm and not be able to even see the plays.
Safety also comes in the form of the equipment with pads and protection much more advanced than was previously the case. No longer is the player simply clothed in matching uniforms – now you can barely make out the person with all the gear! Good thing they have jersey numbers so you know who they are!