I would lie if I said that I don't care at all. Inside me I know how much fun and joy the old Blizzard games have brought me. I have spent a lot of time in those games, but it seems like Blizzard has changed so much, and so many of the original passionate talented people that created those franchises left, so at this point it feels like not much would be lost. Capitalism played a huge part in destroying Blizzard. The day Activision had a foot in the door the first microtransactions items were added to the store. The focus went from great games to cheap games that can make money. Content was strategically placed to have people play for a long time so they have to pay sub cost each month (WoW).
A lot of time between game releases, cancelled products, a shift towards games that are very easy to monetize (hearthstone etc.) and a shift away from the true classics that made Blizzard the #1 US PC name for many many years. When I thought about amazing PC exclusive games the first thing that came to mind were the games Blizzard created.
So right now it is pretty easy to not miss Blizzard. Diablo 4 would be the only game that hurts, but at this point what can we even expect? The dudes in charge of D4 also left Blizzard. It was internally delayed and bleeding talent and going down a radical path they are doing now to help restore their reputation will be way too late and probably affect game development negatively for the near term future.
They used to be really special. People that experienced their games when they came out 15-20 years ago know exactly what I am talking about. Blizzard wasn't just good, they were special.
Those times are over and I am not sure I see a chance they could ever come back. Hopefully the new studios that were formed by people leaving Blizzard can release some decent games here and there.