Really?! ASequel to Final Fantasy X-2?!!

It looks like the creators of Final Fantasy X were not happy with the closure brought by Final Fantasy X-2...

The link below is to a summary of the novel which is a sequel to X-2.

https://finalfantasy.fandom.com/wiki/Final_Fantasy_X-2.5_~Eien_no_Daish%C5%8D~