"We were already doing X with proven technology" is not really a good argument. In the United States, people have had video displays in their homes since the 1950's. Are we going to ask what new has been done in that field since then? Also, sometimes you have to rebuild technological capabilities on a new foundation in order to move things forward. Yes, humans have been able to send humans into space since the 1960's (though not beyond low Earth orbit since Apollo 17 in 1972). SpaceX only recently caught up with that capability. They still haven't sent anyone beyond low Earth orbit. But they're catching up, and using a foundation of technology that will allow us to wildly surpass what was possible with the technology of the 1960's.