Oh, definitely agreed!
Also reminds me of the extra noise audible in the sound effects of Oxygene 1 in the 2007 remastered edition (not present in any other edition, even the Dadwater stuff, IIRC)... but that remaster still remains unique in the regard that the "bubbling transition" between Oxygene 4 and 5 begins much later in the 2007 version - while that doesn't really improve the track, it's still unique and a nice bonus.
(Hearing Oxygene 10 in-between the opening laser harp notes of Oxygene 7 still is a nicer "easter egg" to me, though https://www.dropbox.com/s/4ccd4on0z79iwzh/1997.wav?dl=0 )
(Removing the WAVs tomorrow!)