"This 2-year guarantee is your minimum right. National rules in your country may give you extra protection: however, any deviation from EU rules must always be in the consumer's best interest." (which is the case of UK law).
I still don't see any problem. Apple states that you get 1 year of "Apple" warranty, which allows you to get your product serviced by Apple, at no cost, independently of where you bought it.
Beyond that date UK law will apply, but since it applies to the seller, and not the manufacturer, they say to contact the seller (as I said in another post, a bit cheekily, since they will be also the seller in many cases).
Unless of course you buy Apple Care, that will allow the same level of service as the 1 year warranty...