This show reminds me a lot of Miranda, they have both gone straight in for very blatant laughs by the bucketful and avoided the usual or classic sitcom method of building a believable (or semi believable) world to house them in. Not an approach you will find in most text books, this is what you are supposed to avoid doing.
These are cartoon sitcoms but are very obviously made to be that way, the decision has been made by producers to dispense with the time consuming process of creating that world and so we get a sort of flat pack assembly world with cartoon characters and dialogue which is free from any constraint that comes with a more real world: We know this is a cartoon and so we can expect the jokes and visual gags be as big and funny and silly as possible. Of course there is no basis in reality for that staple gun doing what it did, it is a cartoon scene to get big larfs.
It was a very funny episode. I still want to see conventional sitcoms being made (they're becoming a bit rare now) but if these new type of stripped down, for laughs only sitcoms continue being this funny then they can keep making these too, imo. This method means you should get a lot more jokes in, as there's no real pretence world, it's absolute minimal, just a sketch outline for the machine gun humour.
I did get to NGO very late in the day, and the first couple I saw put me right off, being a purist, but I now think it's fine for this very funny stuff to coexist with the more usual type, it just took a little while for me to realise this. The sitcom genre is expanding quite rapidly, which is no bad thing really.