Delete Account User Setting not working

[goapunk]

URL: https://diid-dev.liqd.net/account/account_deletion/
user: Single-Sign On user
expected behaviour: either the account deletion menu isn't visible to users which logged in via SSO or the account deletion works somehow (not sure how without a password)
behaviour: SSO users can see the account deletion menu but can't effectively use it as they don't have a password
important screensize:
device & browser:
Comment/Question:

Screenshot?