It’s insanely ambitious. preposterous IMO. I wish Stranger On A Train were around to comment, but doing all this stuff in three missions is just a fantasy. Granted, Orion is a different program. And Gateway is apparently also separate, so maaaybe there’s a lot of testing of those two things before Artemis III. But then we have the HLS moon lander, another piece expected to land the first time on the first mission. Integrating all three things for the first time in one mission seems nuts to me.
ETA: Wait, four things: lunar gateway. So now we’re going to perform a dance with four big space-tech pieces the first time perfectly. Really.