Well, hold on a second.
D&D, historically, hasn't mechanically cared a lot if characters had connection to the world. This enables disconnected murder hobos, but does not mean they are required. The murder hobos are one possible result, not a rules core element that excludes other character types from play.
Meanwhile, requiring connection in character generation would be a core rules element that does exclude some character types, like the disconnected murder hobo, and the perhaps more nuanced Man With No Name.
Just so we are clear on that.