A's ownership poisoned the local well for years and they're getting rewarded with a brand new stadium in Las Vegas.
Also, never forget that the Giants deserve the lion's share of the blame here, too. Back when the A's were the big dog in the Bay Area and the Giants were having issues, the A's voluntarily let the Giants extend their market rights down to San Jose in order for them to better their financial standing and allow them a better negotiating footing with San Francisco for their new stadium. But when the A's looked for that favor to be returned when a move to San Jose looked like an option, the Giants flat out refused and left the A's high and dry.
No good deed goes unpunished, and soon the Giants will have all of Northern California to themselves.