The java report site has been created half a decade ago, for the sole purpose of Java reports. At that point of time Bedrock had never even been mentioned, nor did we though we would have a platform on it. As we currently have no Bedrock system attached to our reports.cubecraft.net it means that every bedrock username doesn’t exist according to the report site and you can’t report names with a space in it (I think). Which is why we separated the places to report on.
EDIT; this is also why you cant use /registerreports on Bedrock
I was going back home and there were 2 girls walking in front of me, the one looked like my old classmate and I literally waved at her, then realized it wasn't her and just a random girl.. they kept looking at me for like 10 seconds. It wasn't good.