it doesnt run in the blockchain. Its a supplement to blockchain. It just synchronizes the data using rsync. It could be compromised, but if a bad actor took control of it, it would still have to spread to 51% of running nodes. Which is extremely unlikely. Think of it as a more elegant and efficient solution to download blocks.
I also like the idea of torrents, but i think that approach is actually vulnerable to being taken over malicious actors.
Only a Idea of a Concept(I dont think its easy to Implement)
I would personaly like more a System in the Wallet that lets say every day/960 Blocks try to find Consensus(hash of the blocks)of the Days befor... If the Package of the blocks is Approved for maybe 30Days/29k Blocks, it can be Propagated over somethink "Torrent like".