(Not an expert) I read the first few paragraphs on that link. So, by analogy, we might call (normal) crystals with flaws "space crystals". Or maybe they should be "space-flawed crystals" and "time-flawed crystals" - a "flaw", in the usual sense, being a break in the regular crystalline structure. The adjective describes the (nature of the) breakdown in regular structure, not the regular structure. No? I wouldn't defend "space crystal" as a "technically very accurate name".