The very fact that there was a Satellaview Tsushin is amazing!
Radical Dreamers may not have had the same popular impact as the Chrono games, but it was not *completely* swept under the rug by Square. Chrono Trigger Perfect Bible begins with a two page spread "Chrono Trigger the History", which features a blurb about Radical Dreamers, placing it squarely in the timeline beginning with Chrono Trigger SNES in 1995 up to the DS release in 2008. This inclusion begs the question, of course, of why it was not included as a bonus feature in later collections. It's a tease to tell readers about a game that's incredibly hard to acquire. The blurb dutifully ends with a note that "Super Famicom Satellaview service has ended", just to remind readers "Don't come looking for this".