I get what you mean about Starcraft 0wing, I really hated some of the retcons that had been done such as Kerrigan actually having been "brainwashed" or mentally controlled all the time by Amon, instead of simply being a very power hungry cold hearted person after her transformation.
The changes in the Xel'naga, now being these type of "star gods" that bring life to the universe instead of just being alien scientists (Amon being a "fallen" Xel'naga. It gets even worse in the expanded lore).
The nonsense of Narud and later Kerrigan becoming a Xel'naga/star god.
I have seen a lot of discussion about this on the Starcraft forums.
Starcraft 1/Brood War wasn't flawless regarding the storyline/lore but it felt more serious and stronger that Starcraft 2.
I still liked Wings of Liberty but doubt set in after playing Heart of the Swarm, and I could not even finish Legacy of the Void as the story had become so much bunk.
The last game pretty much killed the Starcraft setting for me. I was not even interested in the Nova expansion packs despite that people said that they were better than the core game.
Edit: I forgot about Jim Raynor, in Brood Wars Raynor swore he would kill Kerrigan for killing Fenix and for all the others things she had done.
Yet in WoL he was all broken hearted/he-lost-her-but-wants-her-back-type. What happened to the hurt but not broken rebel leader from the first games.
What I read about Starcraft Ghost's storyline it could have been pretty exciting, you playing Nova and having to deal with the Koprulu Liberation Front and having to unravel a conspiracy involving those new Spectres, doing sort of C&CR in the Starcraft universe.
I would not even mind if it had been released with the graphics shown in the last trailer. I rather liked the retro look and the return of old units as well as complete new ones.
I had no idea that the generic story telling I experienced in Starcraft 2 had become a common trait to Blizzard and that their other games suffered of it as well.
Sometimes I had the feeling that Blizzard tried to copy Warhammer to much as well as Alien, Star Wars, Star Trek, Starship Troopers, Terminator, Predator, but I still liked the games of them I had played.
Perhaps the problem is also because it took so long for Starcraft 2 to be released. Perhaps all the good writers have moved on already.
I also think Blizzard's Overwatch lore is ridiculous and much like a modern day comic/cartoon, doing really nothing new or interesting.
Toront, I am not really a fantasy fan so I never followed either of those franchises. Planescape Torment is probably as far as I go with fantasy as I enjoyed how weird and unusual it was and yet made sense.
I did read about how much Diablo 3 disappointed the fans, especially those who loved Diablo 2, and I had no idea that they have been heavily retconning WoW with the expansion modules.
I think Blizzard has become a victim of its own success, it has gone to much to managers and development team leaders' heads.