I have to say that i agree with this observation of yours @Pathfinder
It does make sense though! I also agree that a Bondsmith having the power of Spiritual adhesion could probably reforge the broken bond but needs a preliminary level of bonding between Radiants. However, i would like a one little twist on it and that is the bondsmith who can accomplish this is not Dalinar that is one bonded to Stormfather but Bondsmith who is bonded to Sibling! Because i think that this third bondsmith will have not the sole function of running Urithiru but he will be important in making all sorts of spren-human-fabrial bonds.
This would also explain why Dalinar has not felt any compulsions of repairing the bond of deadeye shards and their holders!
I totally agree with you here and i think this is a very relevant point here.
I think that when and not if, Adolin revives Maya, it will be not be similar to the bond that Radiants normally make! I think Adolin will be "something new" that has never been! Their bond can be very different from other Radiants, i say, Brandon, have fun here and make something totally different but same at the same time!