[Only had time to get online after midnight, and am online due to surprise bout of insomnia, so apologies for any clarity issues in this post.]
The answer is NO. Linking from the GOI page, definitely not, unless they actually hit the quality standards we'd expect from this wiki.
In this case, while they've certainly improved, they still fall massively short.
They're mostly two people at this point with some assorted lurkers — looking at their Recent Posts, the request to link the GOI page is specifically to get more members.
But, um. I really don't want to rain unnecessarily on the parades of others, and I really do wish them the best of luck. But… the fact is, their entire wiki is a Foundation-format ripoff created to be free of Foundation quality standards; and indeed none of the articles currently extant on the site (as far as I can tell) would meet our own standards. (Although the prose quality has improved since the last iteration. There's some badly written shit, but the articles are significantly cleaner.) But that is the reason it exists, as far as I understand — the authors couldn't get their stuff to fly on our site (or couldn't get in). So I am really not excited about linking that sort of thing. Very different from a translation site.