Question about Origin Gale (ENDING SPOILERS)

So, I'm well aware you can use origin Gale to blow up the netherbrain so that no one needs to become an illithid. However, I want to avoid Orpheus becoming a mind flayer so that when I romance Lae'zel, I can join her to liberate her people. Does using origin Gale to blow up the brain (using the same order of operations to just skip anyone becoming an illithid) still work? Or would I be unable to get the ending I seek if I use origin Gale in co-op?