APA WG comment on POE - all assistive technology access

This is a comment from the Accessible Platform Architectures Working 
Group, which approved this is a Working Group comment at 
https://lists.w3.org/Archives/Public/public-apa-admin/2019Feb/0013.html.

The Accessible Platform Architectures (APA) Working Group has reviewed 
the POE's Use Cases and Requirements document at:

http://www.w3.org/TR/poe-ucr/

We were unable to find  the following accessibility use case in this 
document and request it be added to this document and appropriately 
addressed in all resulting normative specifications.

Historically, similar schemes have been used to deny content access to 
assistive technology users, e.g. Microsoft Reader, Adobe PDF (which to 
this day includes a checkbox for denying AT access).

POE  should clearly state its intention to include alternate access 
technologies among its licensed uses, and require implementing 
technologies to insure they will not be blocked, neither intentionally 
nor incidentally.