I don’t know if “being tested” by authorities is one of the main objectives in this stage. And anyway I don’t see why it would be less effective in that aspect. Blossom is much simple architecture. Basically the simplest approach apart of regular file hosting. This is major advantage. You basically get redundancy, censorship resistance and verifiability with almost no cost of complication. Maybe BitTorrent and seedboxers is also easy to integrate. But I don’t know. It seems more complex.