As far as I understand the protocol itself is detectable and censorable both passively and actively, so it's not real anti-censorship in any way. Just a tool that hasn't been added to censoring DPIs yet.
IPFS can work just fine peer-to-peer over Websockets though, which pretty much look like a regular HTTPS connection. Other applications can make use of this too thanks to go-libp2p and js-libp2p.
