If SegWit is added to the legacy chain, Bitcoin Cash will be far closer to the original "Bitcoin" as laid out in the white paper. It's hardly misleading since the two issue from the same genesis block, share a transaction history, and since Bitcoin Cash changes almost no functional parameters while maintaining the project's original principles.
Claims that the project will lose network decentralization because of growing block chain demands that will definitely outstrip both technological progress and the increase in project support resulting from greater use, adoption and market cap is just speculation. Moreover, the project never promised decentralization for decentralization's sake, only "A Peer-to-Peer Electronic Cash System" which exhibits a practical amount of decentralization. Bitcoin Cash simply hews back to the original plan, rather than going off on a severe tangent without ever establishing community consensus about new project priorities first. Also, removing the self-imposed and unnecessary 1 MB (or ~1.7 MB in the case of SegWit) transaction limitation does not preclude second-layer scaling nor technological improvements like sharding. It simply does not strangle a working system before other proven options are already available.
Lastly, it was always the original plan to remove the temporary block size limit. Bitcoin Cash is simply following through (finally).