OP here, while these are some extremely valid points and i totally get what you anons mean. i don't want you guys to get the idea that i think both are perfect. both are flawed but in equal ways
personally the only main flaw i saw in Final Space was in season 2 when they retcon Avocato's death like hell and bullshit their way into reviving him "at the cost of his son" so that it would look like this event had weight and meaning or whatever.
Rick & Morty also had it's flaws too, don't get me wrong, but rn the only one i can remember off of the top of my head was the infamously unfunny "slut dragon" episode