unfortunately, most of the mid 90's 'Trance' from Belgium was overshadowed by 'Bonzai Records', which must've had incredibly good record distribution at the time. I'm hearing this record for the first time ever.
the 'Blue Planet' guys were later known for their big hit 'Y-Traxx - Mystery Land', some rhytmical similiarity can be heard in the original 'Blue Planet':
Blue Planet - Blue Planet (Original Mix) [Hotside Records] 1995
I believe you, though I would even go two steps further.
First of all, the overwhelming majority of trance tracks produced before 1996 are completely unknown not just to the general trance audience, but even to the hardcore fanbase. I checked around 27 thousand tracks so far (that have a trance tag on Discogs) up until 1995 and selected 270 out of them, and by the time I finish with those years, I expect to have a list of around 400 tunes fully deserving to be among the best the genre has to offer.
Yet people know like 5-10 tracks from those years: Age Of Love, Point Zero, Dreams, Cybertrance, Eternal Spirit... the usual stuff. More than likely because trance only started to get commercialized following Children's success in '95, with tracks procuded in 1996 like 7 Seconds, Pearl River, Seven Days And One Week, etc.
Second, in particular, most tracks from Germany (so most of the hard trance stuff) and most productions from Italy (so most of the dream / Italo trance works) are also very localized, and while people know and love them in their originating countries, most have never heard about them. From Germany, a good example is all the stuff produced under the United Ravers umbrella (Code-3, Code-38, etc.), and from Italy, the tunes produced by Gigi Di Agostino, Roland Brant, and Mauro Picotto (and those are still among the better known ones).
I was not aware of the Y-Traxx connection, thanks for mentioning it. Mystery Land is lovely.