It seems to me that Minerva serves a useful narrative purpose primarily because she is a not-particularly-well-informed pureblood in Dumbledore’s inner circle. Making her a half-blood alongside Snape… well, it reduces the opportunities for culture shock rather a lot. Who could be brought in to showcase the viewpoint of Light-sided purebloods, the Weasleys?
Not to mention I feel like Minerva would be a lot less sympathetic as a character if she weren’t so consistently off-balance.
It seems to me that Minerva serves a useful narrative purpose primarily because she is a not-particularly-well-informed pureblood in Dumbledore’s inner circle. Making her a half-blood alongside Snape… well, it reduces the opportunities for culture shock rather a lot. Who could be brought in to showcase the viewpoint of Light-sided purebloods, the Weasleys?
Not to mention I feel like Minerva would be a lot less sympathetic as a character if she weren’t so consistently off-balance.