Diablo III is one of the biggest selling games in history, it's in the top 20 of most copies sold, and the Diablo franchise has sold more copies of all games than the entire Fallout franchise. Trust me, Blizzard does not hate Diablo, it's made them a mountain of money. They're redoing the first two so people can still play it, they hate it so much, and kept the Diablo servers online and updated all this time, because they hate it so much.
LOL. C'mon. They're hiring for a new game in the franchise. Fact. They're still actively developing for D3, at least in the form of patches and character packs. Fact. It's been a huge success financially. Fact.
The only issue the game has had is the last couple of years it's lacked leadership in the form of management, but the guy who left for WoW returned, and is posting in the forums and making blog posts.
Trust me, they don't hate Diablo at Blizzard. That's just your butthurt or whatever talking.