Teams and payment

I noticed that if two people who have a paid account, want to collaborate using Teams, the person creating the team has to pay again for the other person. Is this a bug or is this intended? Seems a bit strange. In the meantime I made a free workspace for myself and added a team member to that, which works. But I doubt that this is the intended way of doing things.

Edit:
I got an answer from the Rive team:
You have to pay to add people to a team, even though everyone already has a paid subscription. Bummer.