Sounds like INT isn't going to be a dump stat anymore for non Wizards. At least for that subclass. Which is good, because rogues should never have INT as a dumpstat anyway. Now it sounds like it's gonna have more ooph to abilities.
Inquisitive was also an occupation(and prestige class) in the Eberron setting.
That said, I'm glad that they're expanding on character class mechanics that facilitate characters who deal with issues without smashing/spellcasting it.