It's where these things are flawed tbh, it is based on her experience - the simple fact is though, the stewards absolutely should know or at least be able to find out.
The stewards should. But she only asked one and left it at that. If that's where you're going to end your search, it's hardly going to give a good result.
I'll have to concede the point on Wire parking, as I know the area I don;t need signs so not sure how good any signing is. I also think I'm a bit weird in that I wouldn't go anywhere without researching it online nowadays!
Whilst it is good that you research ahead of time, you can't expect everyone to have the time or knowledge to find the info. Then there's also the ones that just can't be bothered, but at the end if the day it's the club that suffers by their non-attendance.
I remember how difficult it was to get in and around Leeds before I moved there, as well as find somewhere to park. Having lived there for 5 years, there's literally hundreds of places to park within easy reach of the main roads in. But they aren't marked. It's often extremely difficult to understand and explain something that's just natural to you.
My brother still can't get in and out of Leeds without getting lost!