Eventhough the F-15EX have increased weapon load and additional pylons, stronger airframe, new engines as well as various other improvements compared to the 'original' F-15E?
If we're talking about the latter, sure. But the thing is, don't just discount other changes and improvements of the former.
It's good if our MoD with the help of a lobbyist can actually acquire the complete package of F-15EX just as what the USAF will have - that's what I'm hoping for as well - but if not, either we'll have to live with it and choose other options for the EW suite, or to cancel it altogether and use the money for, say, 36 more Rafale.
At this point, either options could be either better or worse in the long run.