I hadn't considered that, ok, I'm still disappointed, but at least there's a possible reason that I can understand...

Wasn't there a WoJ about the Librarians thinking all magic is evil with a capital 'E' and as a result, they were partially behind Murph's career crashing and burning because of her friendship with Dresden? I unfortunately don't have the time to look up if my memory is accurate or not(I have a road trip in two hours), so I shall politely invoke the quote gods and request: Could you please find it for me, oh mighty and powerful lords of the obscure quotes? Masters of the arcane confirmations by Jim! Most devoted fans of the Butcher's work! Your humble servant begs your aid, and provides a shameless bribe in the form of internet cookies!

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I remember basically the same thing that you mention, I don't remember if it specifically mentions the Librarians, but definitely some persons way up the authority chain did not like how cozy Murphy was with an admitted wizard and found her guilty by association.  But I don't remember if I saw it on a video here or at a signing I went to... 

Shecky, do you recall anything like this?

No, because we keep beating the same dead horses over and over and over...

I think I can see Murphy being coopted by the Librarians...

Separately, there's been speculation in the past about the long-term future of the existing swords. Per WOJ they can theoretically be given to knew users, so long as that new person is close enough in personality to the original for it to resonate properly (paraphrasing).  So if someday another jerk-nozzle like Morgan comes along with the right Fanatic'O flavor he might be able to use Morgan's old sword.  But I'd been imagining that happening generations down the line, with a store room of magic swords that occasionally get passed on to the rising stars of hte Wardens that are Lucky (or Fated) to fit them.   But you bring up a good point, they might all have wound down and stopped functioning by then.

are you trying to say that the 'sword would choose the warden?'
 

I have to wonder if there is a sword hidden away for the warden of the well. The position might predate the swords, but it would be a powerful artifact to supplement him.
Just like how Harry can use McCoy staff, a warden could use warden tools. Also, he could borrow Mccoys warden sword, it is sure to be better than those off the shelf sword most warden have.

 
Has there been any indicators that McCoy has a 'warden' sword?  he works with the Wardens and helps direct them, but I've never seen him in a gray cloak, aside from CI, but I don't think that was a warden cloak.  And 'most' wardens don't have off the shelf swords, they had been specifically made by Luccio for the individuals while she still had the ability to make them.

Interesting..
They also both have an eye missing, have a replacement eye that gives them knowledge, both are taller than Harry (which is really rare) and both deal with time manipulation.

WAG: Odin is Gatekeeper

Okay maybe not, but there's definitely a connection there.

They've both had the same job, Odin was the previous Gatekeeper, Rashid's "eye" was probably Odins at one time.

EDIT, ok "A" previous Gatekeeper.

I dunno.  On the one hand we've been told that theoretically circles are unnecessary because anyone sufficiently Powerful can Imagine one strong enough to all but Will it into existence.

On the other hand, there are hard&fast rules to how Power is quantified (barring trans-dimensional exceptions like DR), such as the fact that the material impacts the function of the Circle (Iron affects Fae, Blood can carry the most energy, etc. Also the perfection of the geometry affects efficiency. 

So I have to think that a 4 mile Perfect circle drawn in Pure Energy moving at nearly the Speed of Light would still prove Useful even to the upper-tiers of the NN beings.  I cant say for certain that it would allow them to do things they could not do otherwise, but Im confident anything that might call for it would be easier with Fermilab than without

Can you imagine the being that would take a 4 mile circle of containment?