Naturally I understand there is definitely a need to use a native utility token within the Bancor network so as to avoid any future issues that may arise if it had not been implemented. Imho.
Bancor has the right idea. Interoperability just makes sense, as too many cryptocurrencies require accessing some exchange platform that you've never used before, and requires that you create an account that you'll never use again, since it's sometimes for a single transaction in a single cryptocurrency.