Well is it real that the ground vehicles are driving in the middle of the taxiway and the ATC is stopping you for the tankers and ground vehicle? Turning it off is to give you more realism. At least for now. It’s an option anyway.
From what I’m seeing, these issues occur only on AI-generated airports. Not custom handcrafted ones. Where you could have a separate ground vehicle and taxiway paths. Which means, either the AI can’t differentiate between ground vehicle path and taxiway paths. Or it could be the other way around, where the taxiway path and the ground vehicle path is blended together, so both vehicles travel on them.
I can’t see how Microsoft would be able to sort out the issue, other than going into every single airport and fixing the taxiway and ground vehicle path one by one. The only alternative is to improve the AI itself, which falls in the blackshark AI. And better AI requires better machine learning and let them improve the intelligence to differentiate between the two.