They can put as much thought into the names as they want but witty names don't flesh out characters. They've had multiple opportunities but they just scratch the surface and then distract you with breasts or the two MCs winning another game. They've spent all of 10 minutes on both Shiro and Sora's pasts combined. Maybe they should have spent less time with their genius names and more time on the story. Not to mention that the NEET thing is just a cliche to bring in people who like the antisocial protagonist. For a guy who spends all his life inside and is supposedly extremely socially awkward, he has a pretty easy time talking to people. He should be struggling to communicate with a cabbage, not mind gaming an entire kingdom. And the games aren't intellectual either, they just make up rules as they go so that blank can always win.
I guess I shouldn't say the show is terrible, just very shallow.