It does have a prerequisite listed but it says that it is disabled.
Prerequisite listed is:
Paulmon's Plead 1
Level : 54 - 59
Which has Prerequisite listed the same way of (Turned off but listed):
Paulmon's Threat 1
Level : 53 - 58
Which has a Prerequisite listed the same way:
... I can keep going if you want. I know 2 more listed in order, maybe more.