It isn't, because people can and have determined who has the wallets. Again repeating myself, but perhaps bolding will help you focus on the bits that matter and understand why Verge is not anonymous:

Merriam-Webster, first definition of 'anonymous': "of unknown authorship or origin". As said before because Verge is traceable and linkable just like BitCoin you can tell the origin and 'author' of a transaction by just a glance on the blockchain. BitCoin is best case pseudonymous, and now that the busts of the DarkNet Markets AlphaBay, Hansa, and busts of BTC-e and tumblers have happened because of the traceability and linkability of transactions, that pseudonymous can be considered a joke. Tor does not protect against the same issues that BitCoin has because the primary traceability and linkability is on the blockchain, not the initial tx broadcast. Therefore Verge has same joke of pseudonymous properties that BitCoin does; it is not 'truly' anonymous.