Why do people keep talking about Hyperloop? He LITERALLY never promised that. The opposite infact, he said I think this is a great concept and worked on it, but

Why do people keep talking about Hyperloop? He LITERALLY never promised that. The opposite infact, he said I think this is a great concept and worked on it, but all Im gone do is release a Blue Paper. And then 5 years later people are angry he didnt deliver. I really dont understand why people keep brining this up. And as for Mars, nobody can deny that what Musk is doing with SpaceX is getting us closer to that then we have ever been. I dont think any fan of space flight would disagree.