These sorts of things are still blockable through DNS and IP filters cutting off access to the root nodes and such I would guess. As such, what is the use case?
I also don't think it's accurate. Handshake is a cryptographically certified way of establishing identity . Since torrents are now mutable via handshake, it seems like webtorrents can be updated & moved as needed. Further, peer-exchange processes mean that having the initial seeds up probably isn't even a requirement. Even if one particular ip address or site gets cut down, the swarm can use other webtorrent trackers to re-spawn & carry-on.
Aside from your criticism being either inaccureate or misleading, I'd also say the use case doesn't need to, imo, be 100% perfect in every way to be worthwhile. I'm glad someone did seek better, & bothered. A decentralized, updateable, browser-based torrent is incredible leap for a web of data, for interconnection. Even if it's not 100% completely uncensorable, it's many leaps in the right direction, towards decentralization. Especially decentralization without coordination/consensus, which I think is great & vast improvement over the harsh & strict type of computing that *coins have dominated the field with. This work is far more interesting to me.