And don't be fooled about the SLS launch cadence. As recently as summer 2025, Artemis III was still a nominally a 2027 manned lunar landing (https://www.nasa.gov/blogs/missions/2025/08/18/nasa-begins-p...). It got moved to a 2028 manned lunar landing in early 2026, before being converted back to a 2027 manned test flight.
The plan for SLS also does nothing to make it more capable (though hopefully less expensive). The cancelled exploration upper stage is being replaced by Centaur V, which is a less powerful stage. Isaacman refuses (I think rightfully) to really pin down on if there a future for SLS past Artemis V. If Isaacman chooses to cancel SLS after Artemis V (which I think is a defensible course of action), then SLS would represent a ~17 year long program that cost at least 41 billion dollars that netted 5 mission launches.
And characterizing it as "moving the lunar space station down to the surface of the moon" is... kinda falling into the trap. Lunar Gateway was supposed to launch ~2028 (along with Artemis IV - from the era where Artemis III was the first lunar landing). Gateway was a gongshow, and was delayed, and now cancelled. And now the new plan says the habs (the part that people think as an actual base...) happens in Phase 3 starting in 2033. The sort term elements they are trying to reuse from gateway into near term (think ~4 years) base projects are very "ancillary".
It remains unclear if NASA will infact be able to up the launch cadence of SLS to meet the double 2028 launch requirement. While it was clear that Gateway made... very limited sense for great expense, and the new plan is certainly ambitious with what I think is a stronger value proposition, it's also basically exactly as pie in the sky as gateway back in 2019.
The fact that I am doubting NASA's ability to execute now, is the very cost of SLS (and friends).
SLS will never be worth it. But I'd discount from that price tag the continuity benefits of keeping the Shuttle folks around, and aerospace engineers employed, across the chasm years of the 2010s.