Total War: WARHAMMER III

Total War: WARHAMMER III

SFO: Grimhammer III
Super weird endgame crisis army movement range
Hi I'm playing as Mannfred the Drakenhof Conclave in the middle of the dessert. I set all fraction to have strong buffs and maximum endgame crisis difficulty. When the endgame crisis starts I was greeted by endgame crisis armies that have almost triple the normal movement range. Is it a feature in SFO or is it a bug?
It's both frightening and hilarious to see the 16 armies from Sentinels the Tomb king being able to reach every settlement of mine in the entire dessert at the start of the endgame crisis, including the far far away one that once was the base of Greybeard's Prospectors. Holy jesus