It seems like author means his implementation is competitive in terms of _compression ratio_ only, and this is achieved in the final Huffman encoding step. Fro

It seems like author means his implementation is competitive in terms of _compression ratio_ only, and this is achieved in the final Huffman encoding step. From that perspective the BWT implementation isn't very interesting because the BWT is deterministic, so the effect on compression ratio doesn't depend on which implementation was used.