The changes will be made in the textbook’s digital version and included in its next run.
...
On the other hand, few students use the digital version, and as her son’s textbook is brand new (copyright year 2016), another print version likely won’t come out for another ten years...,
This article's mention of the light use of the digital version of the textbook, plus previous discussion threads mentioning publishers going digital to save money and increase profits cause me to question whether the blatant error(s) in the print version of the book may have been allowed as a strategy to stimulate a drive toward greater usage of the more readily updated/corrected digital version of the textbook.
