I think basically you're looking at the whole thing from a different angle. You see a valid workaround and state that based on it, things are fine. But the thread is not just about a possible workaround. It's about a possible bug.
If you go for a HGE which is marked as "outbreak", i would expect to get materials based on the outbreak state. It's not without reason, that the materials even in their own description have info, which state they are connected to. So while what you say is true in terms of gameplay, it's also true from a technical point of view, that we might be looking at a bug. I mean, the whole system of HGEs, finding and identifying them, was reworked in the big patch.
It's not like there couldn't be any bugs. It might just be a display bug, or a deeper burried bug. We can't tell yet. This thing wasn't visible in the beta yet, due to lack of BGS states. Only now BGS states get around and we can take a look. So it really would be worth collecting data on the situation. It can turn out that there's no problem and it was just a matter of chance and random. It might be one of several possible bugs. We don't know yet. But it's worth investigating.
And this is what this thread could have been: collecting data about a possible issue. Instead, it's now a muddled mess of "there could be an issue" vs. "but i have a method to work around it, so it doesn't affect me". I'd really be more interested in more data, to perhaps get a pointer on the root cause of what Aashen observed, than to be told about an already known workaround for this problem.