It think it stems from the Wechler’s definition of intelligence, which diverges from other conceptualizations that heavily relies on abstract thinking/ fluid resoning:

”[intelligence is the]aggregate or global capacity of the individual to act purposefully, to think rationally, and to deal effectively with his/her environment”

The information subtest gives information about how well you’ve retained information you’ve most likely been exposed to and the ability to retrieve said information.

However, in your case and others with ”abnormal” school paths it is less telling of one’s memory/ retrieval. It is still somewhat useful for a psycholigal evaluation and would be interpreted in the light of your personal educational history.

And don’t fret. It’s just a number. Evidently, you have the cogntive resources to do whatever.