While I empathize with the whole problem that negative bonds are causing as a bug that you can't send them gold, I think that this whole thing isn't game mechanics fault. The Duke of Madina made a bad choice by trying to purchase more food than their city could conceivably pay for. Also, unless the caravans aren't more bugged when returning, all of the gold should be returned to Madina for a very large income in the next tax so I see this mostly working itself out.
Also, I believe it is understood by most players of this game that we are playing a game in constant beta, and bugs happen. Unless they are so severe to extremely cause adverse gameplay it usually isn't reset or modified as far as I am aware.
As far as fighting a war goes, in the end if this causes 5 days of not having gold on hand for troops at max you're going to lose what, a single region? maybe two, but very slim chance in the short term. Then, since they'll have likely overextended then you just push in and take back a region or two in response. For the most part, I don't see a single missed tax causing downright devastation of a realm at least in most wars I've been a part of.
Also, fighting monsters on Dwilight, if you haven't had to deal with it for a while is very very difficult at times and can be more devestating than a war when you are overrun on multiple sides by huge monsters. While this isn't "currently" the case for my realm on Dwilight it has been in the past, and I can definitely see that tehre are realms out there that monster fighting can be very difficult.
While I agree that it sounds like things will fix themselves with the next tax, I'm appalled by what you have stated in the last two paragraphs. Have you even looked at the map? Are you even aware of the war they are fighting?
For Aurvandil to attack any of Madina's regions, they have to pass through Madina's capital, Tower Fatmilak. If the tower fails, it's GG for Madina. Just like it would be GG for Aurvandil if Candiels failed.
You really should inform yourself before telling people that they are overreacting and that it's no big deal. They can't "overextend" themselves when both enemy capitals are adjacent to each other. There's a huge different between the Madina war and having large hordes of monsters in your peripheral rurals 10 regions away from your capital.
By rights all it would take is for the over 20k CS hordes to break through our barriers (which they have done somewhat) and unite in Askileon Purliues to take out Askileon itself.
Madina on the other hand: The Duke frakked up as did a few bugs - so Human error, all they need to do is hold the Tower. They dont have 20k + sitting on their borders (and in) that has multiple access points.
Yes, Luria has it far worse than silly Madina. And if you want to get technical, D'hara through sheer human arrogance has it much worse than the rest of the continent combined! Specially if they were to lose all those Food suppliers 
As I said, Pian en Luries risks losing peripheral regions. Madina risks losing their capital and therefore their chokepoint defending the rest of their lands from Aurvandil.
Not in the least comparable. Sorry, but your hordes don't mean squat. They don't threaten total annihilation of your realm.
