Starcraft 2 was just plain Starcraft 2 until they announced themselves that it was was becoming a three part game, which for me is quite different from a full game with two expansions. I agree it wasn’t a “promise” per se, but they had been talking of Starcraft 2 as a full standalone game for a long time before they suddenly decided to break it into three parts. One campaign per game as opposed to one game with all campaign and expansions with new campaigns. Mostly because, as they boasted about, “the campaigns were going to be so huge !”. Arguably, the PvE result of SC2, especially in WoL, is pretty laughable. An incoherent story and poor mission designs acting only as tutorial for each new unit. Honestly, one game could have contained all three campaigns in the state they were ultimately released in !
As for the MP, you had to upgrade. You could still play WoL but you wouldn’t get access to HotS new units… this was working just as Frozen Throne where you couldn’t join a FT game when you had WC3. In short, every game had its own ladder and ranking system. Sure, ranked/ladder isn’t all that there is to multiplayer but it’s still one of the big thing Blizz is trying to push since at least SC1, so having to upgrade to be able to remain competitive was a distinct lie to the “MP won’t require the new games” promise they made.
Diablo3 was the fatest selling game, but fast-selling isn’t a mark of quality : it’s a mark of marketing. Reaching a high number of sales on a wider timetable is a mark of quality though : people test the game, talk about it, bring more players, etc. Heck, I remember even the lead designer of Diablo 2 saying how he was disappointed with D3, only to be mocked and insulted by Jay Wilson, who also refused to add a PvP mode to D3, or take down the RMAH. Ultimately, he was “removed” from the design team of Reapers of Soul with an excuse post from Rob Prado on their forums.
As for the vanilla servers, yeah I agree. Seriously, Vanilla is like a nostalgic dream. It’s just thatthe debate has made a pretty loud return with Blizz suing and taking down one of the biggest illegal Vanilla server ( frankly, I agree with them. It was illegal after all ! ). It’s taken them 6 or 8 years though, and it comes just after Warlords which was a pretty ultra short expansion. Are they going to do official Vanilla servers? I don’t think so, but… there is a video ( https://www.youtube.com/watch?v=XuOYmqSF6OQ ) illustrating my point, actually. People actually do want Vanilla server, and Blizz big heads were just wrong about that.
There were a few other points I sadly can’t discute. I can’t bring proofs - it was mostly internal, about WoW, SC2 or even Titan. Let’s say they often are wrong, and that it seemed it cost them in the long run… First and foremost, “allying” with Activision, which is something I think we all can acknowledge as not a good thing 