Solarian gets Armor Specialization for light armor

[DMurnett]

This is an oxymoron. But I'm not lying, go read its Armor Expertise feature. To my knowledge there's no errata either, though it might have been addressed on other social media and I wouldn't know. Is the feature incorrect and only supposed to give it for medium armor (and maybe heavy armor if you took the level 1 feat), or is the text of armor specialization finally outdated and light armor can theoretically have armor spec?

[Perpdepog]

I believe it's an error. I haven't heard anything about light armor having a specialization.

Edit: Looking through the book confirms this; none of the armor categories have rules for armor specialization with light armor.