notice how Russel T Davies saw his companions as women
and Moffat saw his companions as girls
I think that says a lot
Not to mention that the Doctor named Amy/Clara whereas Rose/Martha/Donna earned their titles. It’s a subtle distinction because, technically, Amy “earned” her title by being a girl who did wait, but it’s the impact of these monikers that’s troubling. Rose became the Bad Wolf when she ended the Time War, Martha became the woman who walked the Earth after saving the planet, and Donna was the most important woman in the universe because she saved it. Both Amelia and Clara have been heroic and saved people, but their titles don’t reflect that. Their titles reflect who they are to the Doctor—not who they are as individuals.
Very good point! They lose their autonomy when the Doctor becomes the decided factor in their titles, instead of going out and earning them for themselves.