...huh.
It is really legitimately actually weird that divinations do that.
Keltham has been focusing a lot on the 'economicmagic' aspects of Golarion magic but maybe he should be looking more into the 'conceptualmagic' aspects. Where 'economicmagic' is magic that lets you do things personally without a huge supply chain, and 'conceptualmagic' is magic where it apparently just takes a simple spell to augment incredibly complicated things like Cunning, Wisdom, Splendour. Those indeed are the subspecies 'mentalisticmagic' of 'conceptualmagic' in which mental quantities are treated as if they were ontologically simple.
In dath ilani serious literature these two are rarely coupled, because they both have Enormous Implications and you usually want to consider the implications Separately. In Less Serious Literature there is sometimes magic that is both 'economicmagic' and 'conceptualmagic', because both of these things are Cool to many readers, and the Cool Stuff Theory of Literature says that a story can be considered as a framework on which to hang the maximum amount of cool stuff.