I think that Lebron did not have a "killer instinct" in the Mavs series, and it stemmed from him waiting too long to develop post moves, to extend his game in other ways. He thought he could just autowin a title. He went out and shaped the fuck up.
What no one seems to understand is the joke that the Heat finals runs entails. They keep hyping 4 in a row HISTORIC OMG, but just think about it. The west had at least 5 killer teams a year, and the only way to match the Heat was with a killer big man or having similarly elite teams on both sides of the ball. Well the Bulls were the only similarly elite team on both sides of the ball, and that died with D-Rose (3/4 years). Howard was the only truly elite big man in that conference, and he was dead 1 playoffs and gone the next 2 (3/4 years). The Spurs "only" made 2 finals, the Thunder "only" made 1. Well, if the Heat played in the East, then Lebron would have only made 1-2 maximum - it could have even been 0 if shit just broke horribly wrong (face teams like Grizzlies round 1 round 2 in a row etc). The Pacers aka worse Grizzlies east almost beat the Heat last year, old dead as fuck KG almost beat them 3 years ago. And the Heat lucked their way to 1/2 rings after lucking into a conference of no threats.
Tim Duncan is a better player and better teammate than Lebron, Lebron is just a more talented athlete. Lebron kills himself on both sides of the floor, but in the end size is almost everything in the NBA (MJ and Bird aka better Lebron being the biggest exceptions to size ruling all). Just breaks my heart that more people cannot read into the difference, when a player earns a single ring it gives everyone license to just rank whoever they subjectively like the most the highest.
If Lebron keeps on throwing up crazy statistics, it matters a little. People still have to fucking adjust for era (MJ would have such an easier time on offense that he would become even more of a killer on defense in this era) and contextualize how fucking lucky the breaks the Heat got were. Maybe they still even make 4/4 finals in the East with Howard and a healthy D-Rose, who knows, but even then the Heat were getting to dodge Griffin, LMA, Dirk, Duncan, and recently Howard all season every season. The rest of the best bigs list besides Al Jefferson are all buried on shitty West teams, so they would pose no threat either way.