Hmmmm let's see, as a Deckard Cain old timer who has waited for and played all the Diablo games until now.
Diablo 1 PC game was released in 1996 and it was awesome!
Diablo 2 PC game was released 4 years later in 2000 and it was awesome!
Diablo 3 PC game released 12 long years later in 2012 and it was, arguably, sort of awesome.
Diablo Immortal, 6 years later is released for just cell phone.
I can't imagine why people are upset.