One criticism I think there is to be made regarding ‘World Enough and Time’ is that Bill remains passive and accepting throughout her time in the Hospital. It’s arguably a reach to suggest that, after however many years of camping out withThe Master, she wouldn’t be incredibly angry with The Doctor for making her wait so long, (although it’s also just as arguable that a mixture of rationality - she knows that she can’t leave the hospital without dying/ genuine naievity/ total faith in and admiration for The Doctor/ that constant CCTV live-feed/ even some form of Stockholm Syndrome, renders this believable), however, calling this fridging, or ‘killing off the black lesbian’ or the bury your gays trope is simply prematurely nonsensical seeing as Bill. Is. Literally. Not. Dead.