This is all !00% correct. No arguments here but on the flipside this is a huge blow to civic and Bay Area pride though. Very storied franchises -even though a couple were in neglect and losing seasons- leaving and bolting up out of dodge on the first thing smoking. I got family and friends all over the Bay.. those teams meant a lot to the people up there. Its facts that its good that the taxpayers didn't foot the bill for a new stadium but this still tallies as a loss for the city, area, and the residents.
The Warriors were definitely gone as they wanted a Staples Center vibe with restaurants, bars, hotels, etc. surrounding the arena. Jerry Jones told Mark Davis that he had Vegas right after they announced that the Rams were going to have LA. So they were gone but at the very very worst Oakland had to work something out with the A's period.