With the exception of a small number of Tracks, I was disappointed with Newman's score, as I was with Skyfall's. It just feels too quiet and themeless. It's restrained use of the Bond theme is also bothersome. I missed the days where the James Bond theme would explode in the middle of an action scene.
I thought the soundtrack to SPECTRE was adequate for the film but not particularly memorable in any way. In other words, it was like 90% of film scores these days.
Unfortunately, your notion of "themeless" film music has pretty much become the norm in modern movies. Very rarely does a composer compose a film score with actual themes that stay with you. Instead, they choose to just use the music track to evoke a mood via obscure, quickly forgotten passages or popular songs inserted into the scene.
Just think about the memorable and instantly recognizable themes for movies like Richard Donner's Superman, Tim Burton's first Batman or Ennio Morricone's spaghetti westerns and compare them to modern films like Man of Steel or Nolan's Batman films. You'll see that, barring a few exceptions here or there, film music has just evolved into a far less thematically oriented format.