I learned that Akesh Temple was meant to be the initial capital of the realm, given it is more central, but that when seceding the game forced the selection of a city (why?)...?
Mrrrgh. OK, I was afraid there was still that inconsistency. I think we should fix that—allow any region that would normally be used as a capital to be designated as one in any of the various places that one can do that.
Would this factor in a decision to move it to Akesh?
Yes, I think so, but it still wouldn't make it a guarantee.
To be clear, I haven't heard of the ruler talk of it yet, other than maybe mention he'd fear it against the rules. But as the new lord of Akesh Temple, I'd sure love the capital to be there, sure would make my life easier. 
Ah, OK; I was under the impression you were the ruler.
I feel like if you
were the ruler, that would actually be another small point in favour of allowing it there (because that kind of selfishness is 100% reasonable IC, and adds legitimacy to a case that it
is an IC capital move). However, again, it would not make it a slam dunk.
I would say that your best bet for convincing me that moving it there is totally kosher is to give it some more time, until the war has moved at least a bit further—either towards peace, or away from Akesh as a front line.
