I could be completely misremembering, but it was very briefly discussed with some members of my team at least in part before our Kickoff meeting. The obvious use to us was to push or dash past defenders and just get to the scoring zone, then switch to the mecanum drive to reorient and strafe within the scoring lane. For all the flak I've given mecanum, this isn't the worst year for it.
However, our team has incredibly limited resources and we did not want to take a risk with our drivetrain this year. Also, the zone at the end of the field is a whole seven feet wide... Thus six wheel drive was the immediate conclusion.
I'm all in favor of calling the drivetrain "octocanum", "wave drive", "XDrive", or whatever silly name people want as long as it's catchy.
