I think Gaby Dabrowski could have won it as well, but doubles (and mixed doubles) just doesn't get as much fanfare as singles. Congrats to Bianca.
Edit: Rounding out the female high performance awards is Gabriela Dabrowski with the female doubles player recognition for the fifth straight year and Carol Zhao as most improved player.
Tennis Canada@TennisCanada
@Bandreescu_ is Tennis Canada's Female Player of the Year for 2017: http://bit.ly/2ipvmzV #CdnTennis