After the fame of Cartoon Network's Teen show, Regular Show, there are many copycats of it. Most of them are Adult Swim style shows put into well known kid's channels eg. Breadwinners, Sanjay and Craig (ew). The newest one would be Apple and Onion.
In this show, there are different representations of ethnicites, non of them were offensive. The series focuses on two naive apple and onion and their struggles. This show would have been better if it's a full on show, so it won't turn out to be considered Regular Show ripoff because it focuses on two friends.
There are even shows consisting of two friends and siblings, like Spongebob Squarepants before Regular Show.
The reason why shows like this got bad ratings is because CN doesn't bother to greenlit fan favorites like Infinity Train or Twelve Forever. They just do their business on the cheap ones.