Actually I'd say this thread has come to a plausible conclusion.
The AH fix for the 225 is sufficiently suspect to keep the type out of high intensity commercial service, but is adequate to give good confidence for much lower time military operations. The 225 continues to sell only to military operators.
Given the current state of the oil patch, demand there is still a good ways from recovery, so AH has time to come up with either a successor model or with a more convincing fix to the 225.