Hi
Stormpath has been acquired (I think) by Okta and they do not accept any new account requests,
https://support.stormpath.com/hc/en-us/articles/115005911587-Register-for-a-new-Stormpath-Account
so I guess the tutorial should be updated accordingly. I have created a dev account with Okta, but their interface do not match the tutorial steps.
IMHO it would be best to change the tutorial so that it uses an RDBMS as a backend.
Thanks for the hard work. Cheers