Unless they ran into both Blind Witches. By pure happenstance.
That’s possible. But the common thread for the residents for HH so far is that they were all in EF2.0 when the curse was cast. So they’d have to explain how H/G from S1 got to either the Wish Realm in UniverseA (which did not exist until a season ago…) and met a totally different blind witch OR how they got to EF2.0 which is in UniverseB and met the Blind Witch of UniverseB, all when they were such a young age (and then somehow made it back to EF1.0 in UniverseA before Regina cast her curse…and then came BACK to EF2.0 in UniverseB to train under Gothel and for Nick to be caught up in Regina’s/Ivy’s curse)
(I just read all that back and my god what have they done to the world building of this show)