There’s no data indicating that he revised parts wouldn’t eventually exhibit the same type of failure, just at a much higher mileage/time in service due to the design changes. The new phasers were released before the new calibration, which was the actual root cause. The intake phasers went through 4 part number supersessions/revisions before they actually figured out what was causing the locking mechanism wear. The most robust design in the world will still fail if it’s subjected to a duty cycle it wasn’t intended for.Yes ford says this is the fix for the old phaser design. Hopefully it is for the life of the engine. Knowing there is an updated part that will work on the duty cycle the old phaser would fail on is apparently only a red flag to me. I would just caution the op in my opinion to find a gen 2 built after 11/2019. It would give peace of mind d to know how many old style phasers that were able to receive the update have failed since the update, vs how many of the new phasers have failed. Also a bandaid is a fix for a wound, but how long will it hold. We shall wait and see on the software keeping that locking pin cavity in the old style phasers from elongating.