The article is making this a big deal when it's not.
As buried in the article:
Sabre also argues NDC is a
technical standard, not a commercial model. “Commercial structures are evolving as business strategies evolve across the ecosystem — this will continue regardless of technology standards,” said Kathy Morgan, vice president product, airline supply and NDC at Sabre
in a recent blog post.
This move to NDC directly affects
GDS. BCD, AmEx, CWT are
travel agencies, not GDS; each of them use one or more of these three GDSes.
According to AA, Amadeus and Travelport is
already NDC capable since October and Sabre to adopt this April.
American’s NDC-enabled content is already available with Amadeus and Travelport and will be available in Sabre in early 2023.
So in other words, you're not going to see missing fares unless Sabre's April go-live is delayed and your corporate agency is using Sabre
and AA proceeds with cutting these fares off from Sabre instead of working with Sabre towards a new go-live date.