Not a big priority for me, but it's a useful feature in case the default MC name happens to be one that irrationally annoys me. Anyway, it's easy enough to tinker with the script and change the names there itself.
But (on an unrelated topic) I'd really appreciate it if games stopped asking players to define the relationships between the MC and other characters. A lot of the time, I don't know for sure who they're actually supposed to be in the original vision, and have no idea how the dialog is even going to integrate these relationships. Which leads to several trial-and-error runs to see if which version of this hodgepodge system leads to the least fucked up conversations. Feels like a pop quiz answering who they are to you, who you are to them, what you call them, what they call you, what the entirety of your group is defined as. There are few better ways to make me lose interest in a game at the start. Just write the relationships the way you want to, edit them to cover your ass from the patronage overlords, and have a patch offsite to bring it back to the original text.