Several folks here have recognized that the spin direction depends on whether you look at the plane of the galaxy from ‘above’ or ‘below’. One thing I didn’t see in the article is how the two types of galaxies are distributed across the 3D spherical coordinates when viewed from the earth (or rather from the JWST).
Im thinking: what if there are a bunch of massive objects like black holes in certain directions that are causing the light to bend in a certain way. So what would normally be light coming from the top of the galaxy plane, is actually light reaching us from the bottom of that plane. Would this slew the distribution of the spin one way - I don’t know.