Honestly, I feel that Konoha x Hazuki is meant to be canon, the gimmick behind the Azaleas as a group is that they correspond to "nuclear family" roles while very much not being one, Konoha is the "father"/head of the family/"breadwinner", Hazuki is the "mother"/"housewife", and Ayame being the "daughter", Ayame even calls both of them "mom" in certain situations.
This dynamic is also specifically where Nanaka x Hazuki comes from, since in their first event, Hazuki goes against Konoha's wishes and contacts Nanaka as someone outside of their family, and people have equated this to cheating on your partner, which is something I personally don't agree because the analogy falls apart if you go just one degree deeper, as Hazuki was doing that for Konoha's sake as well, and you don't cheat on your partner for their sake, if anything, quite opposite...