The logic of the JAA ATPL theory is that the course is aimed at those whose intention is to return to Europe to convert their CPL and IR to JAA, the idea being that it is cheaper than doing all the training in the UK. That of course, is debatable!
XXPLOD, I understand what you are saying, however, most who go to OFT with the intention of returning to Europe also do the JAA CPL SE and ME at OFT, so they only have to convert the IR once they get back to Europe. So, since the OP posted the course, which only seems to be a FAA course, it seems that the JAA ATPL theory is just fluff.