I think WPMUDEV Hub should support login access to more than one user for a single account. I mean that some companies that run on WordPress may have more than one developer, site manager and lots and lots of core users. And they decided that they will use WPMUDEV for their site. Now they have to share a single login credentials among all of them and it is also a very insecure thing. So, I would recommend that WPMUDEV Hub should have multiple user authentication support like AWS have. In case of AWS we use IAM to make new users and grant them permission about what they can use or what not. It would be very helpful if WPMUDEV have an AWS IAM like feature.