well the word "commercial" for me has 2 different meanings:
1- when the track could have been done in a more beautiful way by adding some effort (as most of you said).
2- when the track is so much known, played by every single Dj and found on every cell phone as ringtone! ex: Adagio for Strings - Tiesto!
And i do agree about not labeling a track as "commercial" because 1st not everybody will understand it the way we mean it we can critisize the specific thing we didnt like in a track (e-sam + Genesis)..
that's how i see it!