The valid complaints about seasons in D4 are that S1 is launching too soon(something I agree with), seasons in D4 are too short, and some people don’t want to redo every single side quest every season.
The outright delusional complaints are that Blizzard somehow deceived people about the battlepass only being good for seasons, and this is an outright lie. Blizzard said it was a seasonal battlepass from the beginning. Also people claiming that seasons have “no place in a Diablo game.” Another outright lie.