Regulations are still tight in many areas due to ITAR , the concerns to prevent basaltic missile tech from potentially being leaked to countries without it have

Regulations are still tight in many areas due to ITAR , the concerns to prevent basaltic missile tech from potentially being leaked to countries without it have not changed. To an extent NASA's Commercial Crew program and other commercial engagement vision worked in triggering commercial industry I think it more that technology has changing a lot making it less expensive to attempt building a vehicle. Today, for example Terran is considering building a lot of their rocket with 3D printing, Rocket Labs does that already for their rocket parts. Talent availability with the right skills has become easier in the recent years probably helps.