To be fair, IPFS is a frequent player in the current hype, and is built on DHTs and obviously inspired by BitTorrent.

I think a major factor there is that IPFS supports pluggable transports, so it can easily be used in both backend and browsers environments directly, while WebTorrent (powered by WebRTC) can't directly communicate with most traditional BitTorrent clients (which use TCP/UDP directly) without going through a bridge node.