I think he's more concerned about taking the two trees apart, assuming that the retrofit kit would just be a replacement rear plate. It looks like it's been riveted or equally permanently attached to the front plate and thus really difficult to take apart. Replacing the entire assembly would probably be more viable for most people, but it may be cost-prohibitive for TI if they're sending them out free.
Either way, I'm glad that TI is being so responsive about this. Maybe that'll give us hope to have everything running smoothly by the end of the year lol.