Jesus. It really is that hard. With all the bajillion in extra compute and simulation time from Apollo era, we can't do hard things anymore. We don't know how.
Apollo took up an appreciable percentage of the GDP… this is a small startup with a fraction of the funding. Firefly landed successfully, but they are bigger.
This is a hardware rich, inexpensive program, and they could fly probably 100 missions for the cost of one NASA old style mission.
Landers on the Moon is pre-Apollo in fact, by about three years. The Soviet's Luna 9 landed on the Moon in February of 1966, and America's Surveyor 1 in June.
Surveyor and other probes have landed autonomously in the years leading up to Apollo, and after it as well. We definitely do have the technology, but having not used it for a couple decades, we've gone a bit rusty with it.