Yeah, I'd definitely rather see 14 pages of Ollie doing his own thing that are decently written, and then 8 pages of Dinah doing her own thing that are decently written, than the clusterfuck of trying to give them shared adventures. (Of course, Didio said at Nurama that GA/BC would be the most "flexible" of the backup arrangements, sometimes being Canary up front, sometimes being a whole team issue, etc etc, which doesn't bode as well as splitting them more completely would IMO, but at least offers some promise).
Of course, it's a screw to demote Dinah from headliner to backup, and if Kreisberg stays on the title writing both it's not like it'll make the least bit of difference anyway, but hey, at least they're not killing her, dropping her story completely, or making her a "girl" and shoving her back in her mother's shadow, so she's still top of the class of Birds alumni.