I'm not super familiar with v2 but from what I have read it's not clear how it achieves the same thing as IPFS. Yes, the file-hashing is deterministic, which can allow deduplication across torrents, but it doesn't seem to facilitate either discovery or addressing at the file level. Trackers/DHT and magnet links still only use the info hash (torrent level) as far as I can tell.
IPFS puts file/object hashes in the DHT so they are directly discoverable, meaning people coming to the same object from different from different places can find one another. It also allows one object to be explicitly addressed via an ancestor object's hash (<hash>/path/to/object), which has various benefits.
