There are a couple of anomalies in this report. Firstly, he is talking about a non-military operation and then about sufficient naval 'power' to protect the shipping, but 'not NATO'.
In principle it sounds good. Egypt, Tunisia, Morrocco, South Africa, Oman, Indonesia, etc put a collection of military ships together to escort a fleet of merchant ships registered under flags of passive countries. Would Putin allow it? Would those countries even dare it? Would the merchant sailors? I suggest the answer is no.
So maybe the merchant ships just sail in unprotected. On the basis as civilians and Russia has everything to lose. That will appease Putin surely? Again, I suggest the answer is no. He will just seize the vessels or blockade Odesa on the basis the crew are western spies.
So then you have to make it happen. Which means principally the US, UK and/or France getting involved. That would be interesting. Sailing US, UK and French warships and vessels into the Western part of the Black Sea up to Odesa. Putin might not want to let that happen. But it comes back to the heirarchy of escalation. Firstly there has to be an overwhelming reason to sail US and UK warships into the Black Sea. That reason has to be caused by Russia and probably needs to be in the middle of a global famine with 50 million or so deaths. That has not happened yet, so no escalation. Its drip, drip, drip once again.