Hi there (and welcome to the forums!),
SkyBlock will be coming to Bedrock sometime soon. The reason why it’s exclusive on Java for now is so that it’s player-count can get up to the same level as Bedrock. While Bedrock has been a success so far, the Java network currently has around 3x lower players than Bedrock. This year especially, CubeCraft will be working their hardest to improve the Java network. But don’t fret as Bedrock isn’t completely left out. There have still been updates such as the massive bugfixes, SkyWars Mega, Easter, Chaos Open Week, and more are still coming. And SkyBlock is planned to come to Bedrock sometime soon.
Thanks for your suggestion anyways :).