Also won't be good news for the "Star Alliance fanboys" and/or UA flyers wanting VA to drop the DL partnership to join Star Alliance. Safe to say that VA joining any global alliance will be off the table for at least 12 months - 2 years, as UA will block/veto any (unlikely) *A application had VA kept DL as a partner.
No fanboy of Star Alliance, and don't think alliance membership is necessary for SQ, but in an environment where VA is not operating tranpac themselves, can't help but think UA & AC between are better partners to feed VA domestically (at least based on their pre-COVID 8 routes into Australia, vs DL's single route).
Or perhaps maybe not. If DL is only flying into SYD, then MEL and BNE bound traffic will be preferentially directed to VA, one presumes.