My chief problem with "Rick & Morty", aside from the producers being assholes as it turns out, is that the show seemed like the same joke over and over again. Watch Rick be a self-loathing drunk! Again! Watch him crush Morty's illusions! Again! Watch Morty's family be rubbish! Again! But I admit I've only seen scattered episodes in the first two seasons and never sat down to really watch the show. Mostly I watched it over my girlfriend's shoulder, so to speak. The ending of the 2nd season intrigued me because it suggested growth but my guess is that it worked out much the same as all the attempts at developing Greg House. Whatever happened, he never grew up.
@DarckCrystale haven't seen anything in 3rd season; all my comments refer to what I've seen of the first two seasons, which is admittedly quite imcomplete.