Using ZeXtras Migration with Zimbra Appliance

I see it's not supported. Can anyone tell me why? I thought to be sneaky and disable the check in the libs/functions.sh file but it still fails.

Any chance we could get this to work somehow? I'm doing some testing right now and could help you get this working. There seems to be an increasing bit of interest for current ZCS customers who want to migrate to the 8.0 ZCA appliance.

Thanks,
Matt