comments on WCAG 2.2 draft

I'm writing to comment on the WCAG 2.2 working draft, specifically on
Guideline 2.5.7 Dragging Movements (AA).

The Editor's Note asks if there are assistive technologies that help for
people with mobility impairments. As an AT specialist, I would offer this:

There are assistive technologies that may assist users in dragging
operations, such as: specialized mouse devices with a latching click
button; accessibility features integrated into the operating system such as
Windows Mouse Keys; or assistive technology software for users of alternate
input methods such as eye-gaze or scanning, which may be integrated into
the operating system or available as a 3rd party product.

However, performing dragging movements with use of assistive technologies
is often a cumbersome and complicated operation. This can also pose a
barrier for users with cognitive impairments. For these reasons,
dragging movements should be avoided unless essential.

Thanks for your consideration,

Yuichi Tamano