Its NOT human rated.
It hasn't even flown before. All attempts to fly it have failed or been abandoned.
But the Super Heavy-Starship can't do it in a single flight.
Yes it can with refueling during the single flight.
Not to mention it may not even need refueling to the moon, but just for Mars.
We will see.
Medium to long term, I'm backing SpaceX super heavy over the vastly overpriced Artemis.
Wait and see. If Elon can deliver, SpaceX is going to dominate our space efforts probably throughout the rest of our lifetime. If not, we have Artemis - warts and all. I have worked directly on Artemis for the last decade; and there are some great success stories (ie boosters) and adding the 5th section meant adding significant weight to the structure.
We are also developing BOLE’ which is a carbon composite replacement that will be cheaper, and stronger than existing. We are currently preparing flight sets for Artemis 4; with Artemis 2&3 sitting in storage at KSC. We are not recovering boosters, so they are dropping without parachutes. Don’t be fishing where they land, as they are going to be coming on hot and fast. We are funded up through Artemis 8; at which time we convert to BOLE.
So we will see how fast Elon can deliver on the design. If it were easy, we would have flown Sea Dragon a decade ago