Correct, if the idle did not go to 1200~ then the process did not happen. The idle comes up so there is sufficient line pressure to cycle all of the clutch sets.
On my 2016.5, the RPMs go up from idle (~800) to about ~1250 or so. That's when the "M" shows up on the dash display. When the display changes back to "M1" the RPMs drop back to idle speed.
Certainly sounds like either a step was missed, or that those specific steps don't exactly match what a 2023 model requires. (I've only tested this particular procedure list on a 2016.5. Uncertain whether it perfectly works on any other vintages, as I haven't tested them.)