Sometimes when you drink the Flavor Aid, you can see or do no wrong. Fact is, even if the dick rocket had worked, it would require _years_ to make it human rated. And more decades for a viable strategy to emerge to send astronauts safely to _any_ planet including Mars. The furthest human flight has been to the moon and even that doesn't even come close to the Von Karman orbital injection perigree you'd need to make it to Mars. Ya know, on the quick.
Anyone in science knows this is a beautiful grift. Hell, I'd even somewhat give the guy earlier who said this carries a bigger payload. Ok. However, there are more efficient LEO rockets that carry more massive payload that are cheaper. Case in point is Ariane space and its injection of the James Webb Telescope.
People, many of them, are mostly dumb. Some on here like to fellate Elon. That's their choice. None of that changes the laws of physics. It will be an accomplishment to see Artemis 2 get to the moon with people on it.
Elon knows his bread is buttered by the US government either through his dragon capsule or falcon 9 heavy which launches larger spy satellites. That has taken pressure off the Delta series of launchers the US govt used to launch from Vandenberg AFB.
Stacked engine rockets like this one, see for example the soviet N1, have a central weakness in that if some engines don't simultatenously ignite or shut down too quickly, the thrust becomes grossly asymmetric. Predictable results follow. You can see this in part of the video by Space X.
This will never be a reliable system. Hell even Putin fanboys know that. I'm excited for the next explosion of the dick rocket.