Maybe I'm missing something. Nearly every one of these companies offers SSO on their basic plans through the big public IdPs (Google, GitHub, Microsoft, etc).
What's being advertised as a feature is not SSO, but SSO through a private IdP. So this could just be a case of confusion created through marketing simplification.
Which, fair game! If you are big or technical enough to need a private IdP, you should probably be paying for an Enterprise plan. And from the perspective of these software companies, supporting your third-party IdP is kinda a luxury feature. Moreover, I can understand why Adobe wouldn't want to include these advanced features in their plans for college students.
That’s bizarre. Why would you call outsourcing your user management to Google SSO? That’s a feature provided by most spam systems to authenticate you, not a serious business application.
What's being advertised as a feature is not SSO, but SSO through a private IdP. So this could just be a case of confusion created through marketing simplification.
Which, fair game! If you are big or technical enough to need a private IdP, you should probably be paying for an Enterprise plan. And from the perspective of these software companies, supporting your third-party IdP is kinda a luxury feature. Moreover, I can understand why Adobe wouldn't want to include these advanced features in their plans for college students.