Again, he is free to do as he pleases, but IMO you sign a professional sports contract for X amount of years with the agreement that you will play that sport for X years, barring a medical expert's assessment that you are unable to perform. If you no longer want to play, cool, but don't rub the fans' face in **** with the revelation that you've been cashing checks for the past 4 years with half-hearted efforts over that timen
Professional football is not a thing without butts in the stands, eyes on televisions and fans buying merch. Effectively invalidating fans who aren't pleased with Luck's decision is crass.
Vontae Davis ended his career during a game last year, and it was a story for all of 1 day. Why? Because he makes less than Luck and is far less integral to his team's success.
You make as much as Luck voluntarily signed on for, you assume greater responsibility.
He owes nothing to the fans, and the inverse is just as true.
His background also makes him far less sympathetic, as he isn't exactly a kid from impoverished Belle Glade who must play.
And waits until, what, 2 weeks from kick off for this epiphany?