George,
I like your approaching the topic from an evolutionary aspect for the game. I have further comments though that might make it sounder.
1. It's gonna be more difficult for great one-on-one scorers to score as efficiently as it used to be. But to stop them you need to have more defenders committing to leaving their own men free, which results in lots of spacing for the teammates on offense, meaning much easier for the TEAM of this star player to score instead just himself. There is no reason that those star players and their teams couldn't adjust accordingly as well. In fact, the lower shooting percentage for these stars must not imply that the whole offense became less effective per se.
2. In Kobe's case, as someone pointed out, he did dish out a lot during the finals. Maybe the complementary players did not respond well to Pistons' defense enough to capitalize on Kobe's drives. Maybe no other teams were so quick on their feet defending the parameters like the Pistons did, so the Lakers were never prepared for this test, i.e. they were used to getting unbelievable space for their shots given the two superstars. But one important reason they lost was that they couldn't really stop the Pistons with only two dominant defensive players. Larry Brown exploited masterfully the absence of Malone and tried to force Shaq to defend on the parameter a lot. As a matter of fact, I think the Lakers without Malone would have won against any other Eastern team but the Pistons, while any other Western teams alive in the second round would have had a better chance to win against the Pistons. That's karma!
Anyway, with Kobe, the Suns need to get their defense to the level of the Pistons first, which with JJ on hand should not be that difficult. The rest will take care of itself.
Mind you the Pistons balanced attack includes four very good to exceptional parameter shooter in the starting lineup. In contrast, none of the current core of the Suns Amare/JJ/Marion is a reliable shooter. Even Prince and Sheed are better 3-pt shooters than any of the Suns core. So, even if Marion improves his defense to the level of Hamilton's, you can't really copy the Pistons success with balanced maybe but not so effective offense.