Once again, not really a bug. This option is described as follows:
"Permanent access to the Oak Tower in Loreroot including its upper level. A remote place good for meetings but also a place containing interesting items."
I was quite surprised to find no items in there. Perhaps a rewording to better express what you can find in there? (at least until items do get added, in case something of this sort is scheduled)
[hr]
On a buggy side, I believe I've recently been refunded a WP from Berserker's Charge Access option, while my access there is still available. I am at fault here for spending it, but I'm getting another WP shortly from 1 year of activity, and I think it's only fair that it should be taken away.
Edit: the option to get access to Berserker's Charge reappeared in my Wish Shop - this is why I suspected the WP refund came from there, after which I asked around for confirmation.