Hmmmm ... 'tis mysterious that the article was changed.

Thanks for pointing it out.
FWIW: I just re-checked the ISU site, and Version 1.0 (from Dec 2019) of the "Qualification System" document for Beijing 2022 still is there, with the extra wrinkle for 2022 still indicated on page 3 (emphasis not added):
From: "D.1 Qualification through the ISU World Figure Skating Championships 2021"
"NOCs, who through their ISU Members Nation, have earned the necessary points according to Rule 378, paragraph 2b) and c) will have the right for two (2) or three (3) entries, only if, in addition, they had two (2) or respectively three (3) Skaters/Pairs/Couples qualified for the Free Skating/Free Dance in the ISU World Figure Skating Championships 2021 (ISU Rule 400, paragraph 3)."
From: "D.2 Qualification through the Senior International Qualification Competition designated by the ISU"
In the explanation of which federations are eligible to compete for an OWG spot via Nebelhorn:
"NOCs which have earned the necessary points for two (2) or three (3) entries but did not have two (2) or respectively three (3) Skaters qualified for the Free Skating/Free Dance at the ISU World Figure Skating Championships 2021. This quota place will be in addition to the quota place(s) that the NOC had earned in D.1. These ISU members are entitled to enter one (1) Skater in the qualifying event who had not qualified for the Free Skating/Free Dance at the ISU World Figure Skating Championships 2021."
Link above is from:
PyeongChang 2018 Olympic Winter Games will take place from February 9 - 25 2018.
isu.org