A lot of this discussion is ignoring the OPs desire to have a LHR stopover. I would guess that is still a fairly popular option for many of Qantas' customers. EK DXB into Europe does not address that requirement/desire.
To the OP, have you checked the cost of getting to your final destination, then checking if the fare rules have the usual Stopover option for an extra payment (e.g. $100)
Yes: the stopover is, supposedly, there but in reality it costs much more to book it than it does to buy a separate ticket. This is all much, much more expensive than the trip I have just done where the Lon-Europe trip was taxes only (and all the many, many trips I have had in over the years). Hence my feeling that this is a true blue QF enhancement.