DME became too much crowded, and extension works are, I believe, late. Look at any photo of DME
tarmac, it seems to be the mess! And also, boarding gates are too small to accomodate B744 or B777 passengers.
is the closest airport to Moscow, located in the West, so easier acces by train or road to central Moscow and less flying time while coming from Europe (fuel savings).
Plus, extensive coverage of Russia and CIS destinations, through various other operators, in particular UT Air. And I am sure LH
is in talk with UT Air for a partnership...
will also transfer flights from SVO