Hi, I'm a member of one of the GLXP teams. There is progress. But it's hard and mostly invisible to the outside world. Basically we are small teams catching up to what governments or larger companies are doing. It takes time.
1. Tech development: It requires changes in thinking, tools, procedures etc. Perhaps harder than tech itself is to acquire the required mindset.
2. Legal: Space law is fun but complex once it goes into the details. US laws like ITAR (now a bit milder than before) haunt us. Plus plenty of other laws.
3. Funding: It's hard to make business cases for a (literal) moonshot. Sponsorship and payload are the main revenue sources, but most teams don't succeed. Their story (or presentation) is not exciting or convincing, their team is not adequate (skills, mentality, manpower), so they don't get sponsors, investors, or customers. Or they're just in a country where risk is not rewarded or capital is absent.
4. Launch: Finding the right rocket is important; it influences spacecraft design. Then negotiating a contract and sticking to it. Many hurdles. And it's expensive before the launch. Launch is the biggest cost center.
5. Politics: XPRIZE Foundation is a US org, so US law and politics determine much of what you (not) do, e.g. avoid tech or people from blacklisted countries. Or when geopolitics kicks in and the rocket in another country suddenly or potentially becomes unavailable.
And much more. So we're making progress. But it's not something we talk about much.
I just realize that I wrote the five points above in a kind of negative tone. They're not. E.g. once you have the required mindset, you're filled with nearly unshakable certainty about what you do and why. Laws are solved problems--or when they work on them, they make open problems pretty clear. The pressure to find business cases makes you think hard about what is possible and economical at what time, you start to see a roadmap of doable things until you reach your goal; after all to kickstart private space is one of the GLXP's intentions. The launch sector is a funny business, you meet interesting people and it gives you insights into one of the greatest filters that still stops humanity from going into space at large scales. Politics is not always a burden, it can also be a source of support and goodwill; e.g. if you align interests and avoid stepping on the wrong toes, it can be very helpful.
So, yeah, space is hard. But we're getting there.