Few thoughts here.
1) I'm really bummed out that this happened, Kobe's an all time great and it's always fun watching him compete.
2) It's a real shame because Kobe was having his best year probably since his athletic prime before Pau even got there, he was distributing the ball fairly well and generally just optimizing the opportunities for his shitty teammates this season.
3) Chances are elite Kobe is gone forever. Don't really care for the ULTIMATE COMPETITOR HE AIN'T GOIN OUT LIKE THIS sentiment, he may come back but the guy we saw for the past 17 years is gone forever. He's played 17 NBA seasons, and 3 extra season's worth of playoff/olympic basketball. It's medically impossible for a guy with that tread on his tires to come back and continue producing at the exact same level. Yeah he may work harder than Okur/Brand/Billups, but just consider how BADLY those guys' careers nosedived after they tore their achilles' in their latter NBA years.
4) Idk if they have the balls to do it, but the only logical basketball decision at this point is to amnesty Kobe. Can't go paying that salary next season, dump him, use this run Pau is having to trade him somewhere due to his renewed value, try to resign Dwight and move forward from there.
5) To assign any of this blame to D'antoni is baseless. This team's defense was built around Nash who is one of the worst defenders at his position, Kobe who is one of the worst defenders at his position because he has to take defense off due to his offensive burden, Dwight who was playing at 50% all season, Pau who is slow as shit and isn't used to guarding 4's out on the floor, and Artest who is the only average defender on the entire roster.
This team would be fighting for the 8 seed with any coach due to total lack of personnel, perhaps a game or two better which is still below/neck and neck with Houston for the 7, essentially in a battle to get in regardless. Kobe would be playing these 48 mins a night not caring what anybody had to say with Phil, Pringles, or any other coach in the league. These injuries just happen, it's unfortunate but so it goes.
6) What a trainwreck of a season for the Lakers, I doubt D'antoni wants to show his face in LA again after they get knocked out of the playoffs.