Good choice from a viewers perspective. Either girl band would have been, but they are more polished.I'm glad they are getting the chance that should have been theirs,IMO, from the start.
Safe choice ,too.They will deliver the performances the show needs to keep viewers who care about talent interested ,but with the stigma of having been"not good enough" to be "chosen by a judge" at the start,which would also be a very convenient excuse to send them home in a "sing off" should they start to get too popular..