What about the achievements SpaceX have produced? Those are real people making these happen too.
We can't go and visit the ESA experiment in the game because it won't still be there. We can't go and visit the JAXA satellite because its orbit is so low that it won't be there either. The Tesla will still be there though.
Let's look at what SpaceX have done so far.
- Densified LOX as an oxidiser, resulting in greater payload capacities
- First 100% privately developed orbital class rocket and payload delivery
- First privately developed spacecraft to visit the ISS
- First vertical orbital class rocket landing
- First orbital class rocket re-use
- Heaviest lift capability currently extant
- Fourth electric car in space
Launching a car into space didn't excite me. In fact I would have felt as excited if it was a block of concrete as a mass simulator. What excites me is, this brings ready and easy access to space a step closer. In my lifetime I will be able to buy a ticket on a space ship in the same way as I can buy one on an airliner now. The Falcon Heavy was the achievement, but the Tesla is a symbol, and it brought many millions more people into thinking about science and space than were before. That's why it was done, and that's why it was important. I'm sad to say that JAXA's grown-up sounding rocket doesn't excite many people, but a car on a rocket? That captures people's imagination.
Why is the Falcon Heavy so important? Well this is the science now. It's not that great for human spaceflight, if you want to do special things there, I think it's better to wait for the BFR. On the other hand, if you want to send devices to study Jupiter, any of the outer planets, or Kuiper Belt objects, we now have a way to do that without a gravity assist, and/or have a much higher mass limit than previously possible. Science teams might have to wait just a couple of years to carry out their science, instead of waiting five to ten years. More science, more quickly, and cheaper.
We're living in the future! Isn't this amazing? This is where it starts!