[hughhopkins]

I think Ravi (the author) is spot. The difficulty is the table stakes features for SaaS products have increased so much as the industry has grown and so have expectations.

That being said I think people have erred way too much away from the MVP concept and aren't fundamentally testing the biggest unknown with their MVPs. Of course you're going to need SSO at some point but you don't need it for a MVP.