You're right - it's silly:
"Spanos had pledged $350 million to the stadium project in San Diego. But now that he’s moving, he’ll have to pay the NFL a $550 million relocation fee.
That’s right. For roughly the same amount of money he’s spending to flee the city that has loved his usually woeful team unconditionally for 56 years, Spanos could have had his new stadium. Instead, he fire bombed his fan base to relocate to a city so enthused by the move that it couldn’t even manage to stifle its yawn."
https://www.usatoday.com/story/sports/columnist/nancy-armour...