Nah, it was a net positive show that explored some uncommon subject matter like mental health. It definitely had its moments.
People hate on it because the animation crew struggled to get union wages and because a white actress voiced a Vietnamese character (oh shit, the same criticism was leveled at Rick & Morty). Also some people consider Will Arnett a creep because he dates younger women.
So it's not really about the show they hate so much as the superficiality surrounding it.