Eh.
"Being original"
Apart from LFR, name one thing original from Blizzard after WC3
Overwatch is a decent addition the game doesnt look bad at all and they are a company, they are aiming for what the market is aiming for F2P quick casual games that you can play in and out targeted at the younger ages that have no interest in IP's they have no idea about.
I am not even sure why people are surprised at this point or you are simply not following the game world correctly.
No 12-18 year old knows what Diablo is, they dont know Warcraft, they dont know Starcraft. (Obviously generalizing here but you get my point), they wont go back to play those games that look horrible because they are a generation of GRAPHICS BEFORE GAMEPLAY and F2P before ANYTHING.
They know League of Legends, they now know Hearthstone and soon they will know Overwatch and thats what Blizzard is targeting upon, the new generation of people that have no clue about the older stories, they do not care about them too.
My now 17 year old cousin didnt care when Starcraft 2 came out, didnt care when D3 came out, despite me trying to get him to play those games, wanna know why? Cause its not his generation of games.
He only cared about which hero was coming next in LoL , what new Pokemon game was coming out, when is the 3DS coming out for the new pokemon and how to go to "Platinum League" in LoL, he still does despite being almost 18 now.
The same with every one of his friends, on skype or bring the laptop to his house and play League of Legends ALL DAY.
The same with everyone his age for the last 4-5 years.