Ok. I don't know if you still believe in what you posted because it's been months since this thread was posted but allow me to put what I know on the table.
1. The shuttle orbiter supposed to be reusable, and to some degree it was "reusable" but a lot of people think a more accurate term was "refurbishable" as it had to go through so much maintenance just to fly again; changing the thousands of heat shield tiles, checking the payload bay, and the hydraulic systems of the wings. The falcon 9, however, needs less maintenance as it has less systems to check and it doesn't have the tens of thousands of heat shield tiles to replace.
2. Spacex was the first private company to do something independently. Trying to get approved by NASA instead of doing an already approved contract by NASA like Boeing and such, I think is different. But I do agree that they're not the first company to do something, I just feel that the statement is taken out of context. -opinion
3. Spacex got money by NASA because they were finally noticed and recognized. Other private companies got a headstart because they were already famous and doing aerodynamic stuff before they got into rocket science. -opinion
4. They land rockets on land because they use liquid fuel engines and salt water isn't good for the engine. The shuttle's boosters used solid fuel which has less parts and so less stuff to fix after landing in the ocean (though it still costed more to refurbish them than to just replace them).
5. Yes the moon lander landed propulsively but did it have to deal with re-entry heating, higher gravity of the earth, and high dry mass? No. And not to mention the lunar lander descent module was specifically made for that specific job and after that it was staged and didn't even get to orbit again. The Falcon 9 booster, however, had to lift payload, survive re-entry, and land, where it could be reused afterwards.
6. Spacex use cheaper metal because it's cheaper and it doesn't make sense to use more expensive metals if the cheaper metal has more checks on your checklist that the expensive one.
7. I'm not gonna go full throttle with rocket fuel because I know so little to make an opinion but every type of fuel has its pros and cons like how much temperature before it freezes or burns, stability, density, delta v and probably other things I don't know. Different rockets use different types of fuel to fit their needs and there is little reason to use fuel that isn't meant to be used by your rocket. But the plan is to refuel the Starship to get to its destination. You don't really need an expensive type of fuel that has more delta v if you can make a rocket with cheaper fuel and able to refuel.
8. Of course Spacex has to be "propagandistic" to some degree, they're a company! A company won't get much attention if it doesn't advertise itself as something different from the others.
I hope you understand and put these things in your mind.
Mod Edit - Let's keep it polite!
Facebook
Twitter
Instagram