That's going to extremes, Gwen.
There is still some interpretation available and necessary even with a largely blanket rule. Namely, in any area where the mechanic is contradicted by another official source such as another mechanic or clear dev/lore statement. In that case it is necessary for the community to determine how to resolve this discrepancy in official sources, until and unless CCP does it themselves.
PLEX, for example, has no contradictory mechanic, lore, or dev comment, and it has several statements that validate its existence. Ergo, there is no sense in ignoring or arguing against its existence.
The "door" issue, on the other hand, is a case where lore, dev comments, and even other mechanics (see the Thera station descriptions) all indicate that capsuleers can and do leave their quarters. Thus, interpretation does come into play there and players do have to decide how to resolve this conflict.
The key thing, is that it is the game world itself, and the game world's creators, that determines what is and is not canon. It is not personal opinion and preference by the RPers. As a counter example, in WoW you will get many, many players arguing that certain classes are not allowed to use certain abilities in RP, purely because it doesn't fit with their vision of the world and even when several other sources validate its existence within lore, because to these RPers mechanics is treated as a strictly OOC thing and can and should be ignored whenever it doesn't fit their idea of the world (for example, Heroic Leap for Warriors. Many RPers will call you a bad RPer for using it in RP, because they refuse to believe in a universe where warriors are anything other than normal people with normal skills. When told that it's right there in the mechanics, used by both PCs and NPCs, they will say, "well mechanics are OOC and so should be ignored!"). This will often devolve into the players arguing that lore or dev commentary that supports the mechanics is just in place to justify a silly OOC mechanic, and therefore should also be ignored. It's a slippery slope of players picking and choosing what they want to accept.
Players should never be allowed to be the ones to pick and choose what is and is not canon and what is and is not IC. If the content creators themselves create an atmosphere where there is room for interpretation, then it is fine to debate that specific topic because there is no straightforward answer. But when there IS a straightforward answer that is unopposed by any other official source, it is senseless and destabilizing to argue against it just because you the player don't like it or think it's wack.