Exactly. I think the prior poster is insisting that *A requires *G board with F, but the wording of the *A benefits are broad enough that UA only has to give them priority boarding. After all, why would UA give OAL *G pax higher priority than their own *G pax? Likewise, an airline the size of UA can't lump F/C/1K/GS/Plat/Gold all in one big group (which is what the prior poster would necessitate) for boarding; it would be an even worse mess than it is today.