Actually, no. There is something really weird going on here. I tried a different web-browser, iCab, and it still fails. Now I presume that iCab will not be using the ad-blocker because I would have thought that it is a plug-in specific to Safari.
There is an iPad app that allows you to inspect on http traffic (by way of installing a component that acts like an http proxy). I think that it was one of our own community who put me on to it - extremely useful on occasion. I discovered that firing this app up and letting it record traffic makes that website work! God only knows how!
I am wondering if this is a much deeper Apple bug of some kind in the light of this.