We made a few enhancements in our organization member roles.
Both Normal+ and Normal members can add projects in an organization, and when they do, they become Admins of the projects. The only difference is that Normal members cannot access other projects that they are not members of.
In summary, Admin, Normal+ and Limited+ members of an organization can access all projects in this organization. Normal and Guest members cannot.
For more details on roles & permissions, you can check out here.