I think it's a shame he didn't do a full J.B. theme. For two Bond films the least you can expect one time to hear the Bond theme full and I don't mean rehashing the Arnold one in Skyfall, but one of the composers own, with a destinctive style, like all other non-Barry Bondcomposers did before him: Martin, Hamlish, Conti, Kamen, Serra, you know in a second which version it is, when you hear them!
Inclusion of the JBT in some form would be nice on the soundtrack CD of any Bond film. But I can think of several examples of pre-2003 remix soundtrack albums where the Bond theme is either used sparingly or not at all. It is overshadowed by the "007" theme on the TB soundtrack remix and doesn't appear at all on the pre remix version. Similarly on YOLT. A version of sorts appears - quite a good version I think, mixed in with the theme tune - on the DAF soundtrack as "Bond Meets Bambi and Thumper". On the MR album - not at all.
Linking all these is the composer, John Barry. Maybe he and the record producers felt that, after so long, audiences and listeners didn't need the JBT every other track to be reminded that they were listening to a Bond soundtrack. On other occasions, however, the JBT is there on the album - with OP more than once.
I guess the disappointment with Thomas Newman - and for me it really is only a minor point, especially after listening to the SPECTRE CD several times - is that we've so far been deprived of his personal "take" on the JBT, save for the track "Breadcrumbs".