It's not a generational thing. It's a remember on the basis of what you want to remember, not a crack at you, it's just something everybody does. Ala 90s kids talking about how great their era is while ignoring everything that doesn't fit into the reality they believed in. Every generation does it, every generation was better than the one following it. I don't want to assume, but I'm certain your parents before you said the same thing of yours.
For every class act you can think of from the old days, there were just as many Chuck Bednarik's celebrating over the injured bodies of their opponents, Butkus' admitting to scratching clawing and biting their opponents, Iggy Shuffles and so much more. One of those is the most beloved and persisting images of what the NFL is to this day. Athletes have been trash talking assholes mixed with class acts since the beginning of time.
The only difference is guys like TO and Ochocinco trying to make feature length films out there while celebrating, which slowed down the game. They definitely tried to go bigger, but they definitely didn't go worse.
And they definitely didn't start the trend, nor will they be the end of it.