This answered so many questions I had. Thanks to WeiqiTV, this combo is no longer completely shrouded in mystery.
This game between Meng Tailing 6p ❤ and Cao Youyin 3p was played in the Longxing Cup preliminaries. Allegedly this year the groups were sorted by age (U20, 20-30, 30-40, 40 and above)1 and the main tournament will be held in a hitherto unseen tournament system.
1sic! That’s what he said. No idea which groups 20, 30, and 40 year-olds get assigned to.