I was hoping this not to be the case, but I'm inclined to agree with you.
I spent a few hours adding some configuration to a device by CLI trying desperately to see those changes show up in space. It seems like this went wrong when they tried to go with a modern web based approach instead of developing their own standalone application like NSM.
Looking at the software it feels like a half-completed abandoned project. Does not feel like anything I could ever endorse being used in a production setting.
we use it to push code and such but pushing configs is not easy the best thing i found is HPNA for pushing configs to juniper devices you can use set/delete commands and go line buy line and it wors perfect