That's also part and parcel of having an automaker that develop incremental updates several times a year rather than shipping a refresh model every 2-3 years.2) The change to Ryzen based MCU happened around the start of 2022. That means there are potentially people who cars are just over 2 years old that are effectively considered "legacy" and likely to receive a diminished update experience from here on in.
On their side it probably avoids the 'iPhone effect' where demand falls at the end of August, but as a customer, you might have missed out on a new key component by placing an order just a couple weeks too early.
For instance, I am anxiously waiting to see when my current Ryzen MY will be considered legacy too, when a future update will be made available only for HW4 and up, and will leave HW3 behind...