You are obviously completely ignorant of what Paisly means to the Véinsørmoot. It is the jewel of the Maroccidens, it is the birthplace of Maroccidental culture, civilization, and society. Melodia was born there and started the long tradition of Maroccidental Republics and societies. From there Nobles spread to Terran and the Dragon Isles and eventually nobles passed through Paisly to come to Terran to create Barca.
Furthermore, there is a history of fighting to protect the city from Southern invaders and conquerors. We fought long, drawn out wars against Madina to keep the city when they refused to release their claim on it. Aurvandil taking the city is just ripping open all of the old wounds of Southern Imperialists always trying to impose and conquer in the Maroccidens and the small realms vying to stay alive and keep their land. You are Madina reborn.
It isn't different at all. Sure, it's not technically the "Capital" of any realm. But as much as Candiels is the birthplace of Aurvandil and their culture and their history, Paisly is the same thing, except with an even deeper and longer history and significance, to the entire Maroccidens. There is reason why Terran is fighting so hard for regions that aren't even theirs to begin with.
Literally, conquering Paisly and putting some insulting puppet realm there (and here I thought relations couldn't get any worse) is the worst thing you could have ever done for relations with the Maroccidental realms short of just taking Terran, Barca, and D'Hara off the map.
Yes I sort of mentioned it to Machiavel and Rynn that I didn't know why they were so ... bothered about Paisly and neither of them went into as much detail as you did. As Mendicant said, well he'll always be ignorant if his opponents won't offer him their perspective when asked.
