I just did 5 different searches on Google looking for WWII flight games, wwII aircraft combat simulation, WWII Games, Flight Simulation, and Aircraft Combat Simulation : Aces High is never returned for any of them so by taking down the wiki what has improved in Google search? One might make the case that the fee charged for the services provided by HiTech Creations included the BBS and Wiki. At least according to the first sentence of the TOS.
The issue with Google is most likely due to the errors generated by the wiki pages. Google will not refer you to a site that has those errors. Now that the wiki is down eventually Google will add the HTC sites back to the top of the list.
As far as the TOS, it says you get the game and a message board. Nothing about a wiki which was added much later.
To repair the wiki you have to understand the code. It's not just going through and editing a page like you do when you setup the squad page. I looked into it and it is a whole different language.