lol i'm one of the main supporters to these solo servers. Made multiple posts and threads about them. One day hopefully. It's been rumored that they are working on them, but that rumor has been floating around for quite some time.
Some people just don't like to unfairly fight people. Looking even back to the actually hunger games movie and books.. who were the most hated and unfair people in the game? The people from districts 1 and 2 who were in big teams going around killing people. I'm not saying teams shouldn't be part of SG. I'm just saying that for some people, we don't like unfairly fighting. We want fair fights, but that is impossible to do when there are multiple teams of large numbers in every game.
Solo servers just gives everyone the chance to play a game that they want to. If you enjoy teaming and stuff, just play the normal SG and there is no harm done. If you despise teaming or just don't have anyone to play with at the moment, you can just go play on the solo servers. Everyone wins if the servers are added.
You may be ok with fighting countless teams every game, but some of us would rather fight fair fights throughout. The number one thing i see raged about on these servers is teamers and hackers.