Now, the problem I see here is, that the compilation is DJ-mixed and the mixed recording is significantly shorter than the unmixed version (6:55 vs 8:32) and I think these should count as different recordings. In addition to different run times, the audio content of mixed recordings is also significantly changed due to the transitions from the previous and to the next song. AFAICS, the style guidelines don’t explicitly mention DJ-mixes in the context of merging recordings.
DJ mixes are not explicitly mentioned, but “Variations in the length of silence at either end of tracks is not a reason to keep recordings separate, since no changes have been made to the audio itself” (emphasis mine) should be pretty clear.
I just had a listen and both tracks do have different audio. It also looks like the track length in MusicBrainz is wrong.
The current explanation of that relationship in the editor only applies to DJ mixes which merge several songs into one mix. What to do with DJ mixes that are separated into single tracks, like lots of bonus CDs/CD2s where the first CD includes the unmixed versions and the second is a DJ mix? Those should ideally be connected somehow.