I doubt the change was purely to thwart people copy and pasting things, I think the boffins that make web sites like to justify their existence by "improving" things now and then. The new site had a general bit of java script in it that disabled the regular right click of the mouse (for all pages I think). Some smart ******** programmer no doubt thought it was a clever idea to stop people getting into his web page.
My fear is that they are just putting the old page back while they fix up some little bug in their new pages at which stage it'll reappear.