[Spoiler] Did they forget Porxies exist?

[Cleretic]

"Only an Ascian could ever possibly know what shard this is. Who cares anyways, it's not like I'm a shard scholar or anything." (rough paraphrasing)
Looks over at the EE volume 3 p.13, sees only four unexplored intact shards, and watches as Hiroi marks in 'e' on a four-answer multiple choice question.

Okay you're just being obstinate here. The entire point is that you don't know; sure, you've got a 25% chance of being right if you take a stab, but who's going to confirm it? Being right means nothing with no way to check your work; if you baselessly got a one-in-four chance right, I'm not going to be impressed unless you can tell me you had actual reasoning. I can look out my window, point at a star and say 'that one's got aliens around it', but nobody knows for sure, and it's not impressive if I just guessed right.

Also, the EE3 itself is of... dubious factual value even in-universe. The first page basically says 'look the Scions came back and said some wild stuff, and we don't think they're lying, but we can't fact-check any of this'. We as players know it's legit, but frankly some of the specific facts even we can't verify. I have no reason to doubt that the shards they listed as still there are, in fact, still there, but I have no idea how they'd actually be able to know or check.