Why would successful developers and publishers integrate Hoomi? Is user demand for Hoomi their only incentive? Or is there a positive benefit for them as well? If the former, it's not clear why developers would rush to support it until it accumulates a very large and uncompromising user base; and building that user base will be hard without a lot of apps/sites already integrating it.
There's definitely a benefit to developers. Hoomi provides an alternative to social login as well as an easy way to get single sign-on across their suites of applications. Furthermore, developers can adopt Hoomi rather than adding their own email/password-based login mechanism and avoid having to build screens for login, signup, email/phone verification, password reset, account management, etc. Essentially, developer…
How does "an alternative to social login" itself benefit developers? Every other benefit you've listed out is already being provided by social login providers.