This was an amazing thread.
And I want to commend you on the primary literature-esque figures. :p
First off, I completely agree, since as someone who generally relies on the player market for my share of Sublimes, I would prefer them not to break my wallet. On that note, because the prices for some of the other special safety stone are a tad high for the % that it gives, I only ever use sublimes. After failing two halcyons in a row I kinda never want to use them again.
I want to address the question of the AP ratio: For some objects such as the permanent stat Star Stones and Gems, etc, those were like AP 1:5. For other things as mentioned, such as Prime Back Fashions, and may others, the prices are every increasing (25k-65k for wings?). More than it ever has, and now they are 3x, 4x, 5x, what they used to be if you played a few months ago. Its not just these, it seems like everything from the Item Mall is increasing while everything in game is relatively the same, or is dropping, such as crafted goods.
I personally think two things:
1) I think they will neither make the price of safetys lower, nor increase its availability in game.
2) Even if they did, like you said, it won't change much unless its long term. If people are worried about how all the players who use sublimes finish forting are done forting, I don't think so. Once I finish forting my main gear, I would stock up sublimes for my next set/weapon before I say im done. Im sure I'm not the only one who will stock up all kinds of safetys in anticipation for the next gear patch.