Change setUserInfo on the service to work more like the following:

[validkeys]

  setCurrentUser(userObject, key = "email", newSignup = false) {
    this.currentUser = userObject;

    _.each(this._providers, (provider, providerName) => {
      if (newSignup) {
        provider.identify(userObject[key]);
      }
      provider.alias(userObject[key]);
      provider.setUserInfo(this.currentUser);
    });
  }