And what about Paine, Baralai, and Nooj?
In FFX-2 there were Crimson Spheres which were actually required to be found throughout Spira. The Crimson Spheres featured events about this group (called the Crimson Squad) which included Gippal as well. Paine was a recorder for the Crimson Squad and that's how she knows the other three.

Crimson Sphere 1

Crimson Sphere 2

Crimson Sphere 3

Crimson Sphere 4

Crimson Sphere 5

Crimson Sphere 6

Crimson Sphere 7

Crimson Sphere 8