Many of these services are more scams than protection but unless presentation by Wordfence is deliberately FUD´ing away to make someone pay for removal I dont see how it does anything wrong. If what ever link to a malware site it should of course warn. File IS infected, the end. In that way site IS infected, also the end. Does not matter link is not visible on front or only to certain people.
The real problem is lazy or careless admin
The last time Google visited this site was on 2012-06-16, and the last time suspicious content was found on this site was on 2012-06-03.
So nothing found for 2 weeks. He also have had 2 weeks to inform about this yet nothing. There is no reason to believe site has not been infected - but he just go Meh! He should submit site for a new security review to speed up being white listed. Can be done via Google webmaster tools I think.
Now he is also blocked by WOT http://www.mywot.com/en/scorecard/robm.me.uk
- blocked once, blocked many times. How it goes. And certain companies are very well aware of the power they have with these lists. Certainly WOT is. Think online businesses and premium "services" where they are protected against ending up in such a mess. Lovely... Now Suffusion is feeling a bit of that too with this issue.