Yes, but if there was time left on the clock (and there was plenty of discussion as to whether the clock hit zero and time was later added or the clock was at 1 - see post-Super Bowlk threads here), it is bad sportsmanship to call the game before it's over and deny the winning team the kneel down.
But it is only bad sportsmanship if he intended to do that. If Hoodie knows Belichick embellished at his
press conference when he said he was following the crowd and thought it was over, he is right. If Belichick is telling the truth, Hoodie is wrong because you cannot unintentionally be a sore loser based on a mistaken understanding of the situation.
It is a debate with no end and not really worth rehashing. I tend to agree with Hoodie but cut Belichick some slack as no coach has ever dealt with the highs and lows that he had to deal with that season, including the constant media pressure directed at pursuit of an undefeated season, Spygate, relentless media attacking him and all his accomplishments, allegations, etc., so to end the season without a measure of redemption had to be particularly painful.