The author's point about impedance between the iPad's design and creative tasks is not made in the context of statistically unlikely tasks such as writing poems or Caribbean reef diving travelogues or skydiving tutorials. His point is about creation that falls within a standard deviation or two of ordinary life:
Consider a creative task that almost everybody has to do: writing a job application.
Like responding to a business email or writing a Perl script to process network log files, there tends not to be some app that facilitates the work and iOS by design intent does not facilitate mashups.
Historically this divide between Windows and Apple's in house operating systems might be said to go all the way back to the development of OLE and Apple's proposed long-dead OpenDoc.
Consider a creative task that almost everybody has to do: writing a job application.
Like responding to a business email or writing a Perl script to process network log files, there tends not to be some app that facilitates the work and iOS by design intent does not facilitate mashups.
Historically this divide between Windows and Apple's in house operating systems might be said to go all the way back to the development of OLE and Apple's proposed long-dead OpenDoc.
https://en.m.wikipedia.org/wiki/Opendoc