I played Undine with a friend playing humans.

The Borg let me free and i finished the crisis questline which said that after researching those I could unlock tbecoming the crisis as ascension perk, but that perk didn't show up.

Now, it wasn't exactly needed; Undine seem to be sufficiently overpowered that they can be the crisis without even picking any ascension perks.

But it felt wrong as the text seemed to imply otherwise.