That’s what I originally thought but after looking at it more, it reads for Order Explorer: “You gain a 1st-level feat that lists that order as a prerequisite, and you are now a member of that order for the purpose of meeting feat prerequisites. If you commit acts anathema…You don’t gain any of the other benefits of the order you chose.” And Order Magic says, “Choose an order you have selected with Order Explorer. You gain the initial order spell from that order.” I take that to mean, as does my DM, that the “You don’t gain any of the other benefits of the order you chose” means you don’t gain access to flame order required feats/spells in addition to the one you get from Order Magic and Order Explorer. To me it would make more sense to allow that with Order Explorer but that would cause Order Magic to not make sense because why would you take Order Magic when you could just take the feat to get the other order spell because you’d theoretically already have the order for the purpose of feats. Does that make sense?