Yup. The whole thing is being ignored.
That's BS, then, because it means that parts of DRGIII's triumphant resurrection of DS9 - Plagues of Night and Raise the Dawn - are suddenly inaccurate and apocryphal too. Whoever made the decision that IFM didn't happen really didn't think things through.
Looks like I'll have to ignore this new trilogy and hope that future books don't screw over the wider novel continuity any further.