A thought... if these are supposed to be Background skills, perhaps they shouldn't be un the upper cusp of the curve.
So a suggestion might be to push back the automatic advancement from 2/7/15 to something like 5/9/17 potentially. I moved all the levels back, and I got the impression that Expert at 2nd is supposed to be a 'specialty' of various Archetypes that comes with the price of longer term commitment.
I agree this concept waters down the benefits of those classes that are supposed to be skill monkeys by making things that only they could reliably get to become easier to achieve with other classes. However with it slightly delayed that may be less of a direct issue. Also, if the campaign expects more skills across the board, perhaps the skill monkeys can still stand out in their role by (one getting to ranks quicker, and getting an even wider range of skills). Thereby potentially leaving them some room for that part of their niche.
Really, what you are kind of creating is a variant of the old Signature Skills that got some rather bad feedback when it was in the playtest. I think some of the basic concept of the signature skills had merit so was potentially more salvageable than it was given credit for. But this might remind some others of that concept, which might not be seen as a general plus.