Email 2FA with keycloak and PrivacyIdea

I’m not sure i understand this right.
We use Keycloak as IDP.
The customer requests to have three alternatives for the 2nd factor: [HT]OTP via mobile app, via SMS and via eMail.
Following Keycloak - ExtensionsHow to use Keycloak with privacyIDEA - Howtos - privacyIDEA community i had an understanding this Extension would fullfil these needs.
Am i wrong?
Else, are there any ideas how to fullfil these requirmenents?