The ability to read and flash that TCM has been in V8 for a while now, however there is no official mapping support or checksum correction in EFILive for them, which is what was stated above won't change.
That company must be doing their own thing outside of EFILive and just using EFILive for flashing, this isn't uncommon as there is a few controllers like that in EFILive (such as the GM / Bosch gas ECM's, E55, E77 etc).