CBusdude Charter LOVES to keep things on their network as much as possible
Actually, most importantly, Charter LOVES to save money. Peering and paid transit all cost various kinds of money and adds some levels of complexity. Connecting to the major providers in the usual colos often makes the most sense for Charter to avoid spend. While some people will point to various claims of “free peering”, that does not include the costs of equipment or colo space or cross connects in the facility, and some of those peering requirements come with minimum commits that you cannot meet at some locations.
If you are a serious competitive gamer, and the game you play offers advantages with lower RTT, your best approach is to move next door to one of the the hosting sites of your favorite game servers with a careful choice of available enterprise ISP services at that address (just like the major financial players in the high frequency trading market moved their servers next to the stock exchange to gain a few microseconds). Or, for those not playing at the highest competitive levels, choose a game where RTT does not matter.