It's not just the owners, either. The league office is "beside itself" over the Chargers' move.
In what might be the most surprising part of the report, the NFL actually wants the Chargers to move back to San Diego, although the league doesn't actually think that's a realistic possibility.
Chargers owner Dean Spanos is probably going to be horrified when he hears this news, because he used to be one of the league's most beloved owners (among the other owners). Instead, he's now viewed as a villain in San Diego, no one seems to care for him in Los Angeles, and it seems that he's lost the backing of his fellow owners. That's a trifecta of ugliness that's going to be difficult to recover from.
The fact that the league was completely against the Chargers' move shouldn't come as a surprise. NFL commissioner Roger Goodell made it clear on several occasions that he wanted the Chargers to remain in San Diego.
As for the owners, CBS Sports NFL Insider Jason La Canfora can explain why they're upset. As La Canfora reported in early January, several owners had "grave concerns" about putting a second team in L.A. so soon.
After 21 years without a team, the league didn't want to rush into L.A. The owners and the league also didn't want to put a second team in the market with the Rams still trying to win fans over after a rough season. If the NFL starts to struggle in L.A., the owners are going to blame Spanos.
The Chargers are in a lose-lose situation right now, and the best shot at a win might be for Spanos to turn the moving trucks around and head back to San Diego. Of course, it is possible the Chargers will succeed in L.A., but the only way that will happen is if they're actually good over the next few years.