Platform is the home for all customer admin tasks within the wider MAS ecosystem. Aspects of your accounts, such as billing, user management, overlays and teams are handled here.
In addition, every livestream started under your account will be visible to admin users on Platform - allowing you to create highlights and monitor account activity, regardless of the visibility settings used when setting up a match.
If you have a lot of people who may use your MAS subscription to score they do not need access to Platform, you should reserve access to people who need to create highlights or otherwise own the account. You can use your organisation's quick access scoring code to allow other people to score matches without needing them to have a username and password (or direct access to your backend).