As a move of self preservation though the IWC needs to get rid of it.
While it exists the IWC does not matter. Nobody gives a dam about the IWC anyway. They can't touch you and they can't touch me.
And yet they are seen as the authority on whaling!
There is only one power in the IWC and that is the 75% majority in votes.
This has worked well for Japan. They buy the elephant ivory gathered by African poachers, and African nations vote to allow Japanese poachers to kill whales.
One hand washes the other and the trade in protected animal products has a lot of hands.
We have seen that William Hogarth may be little more than another shady Eugene Lapointe character. Only instead of sending 100,000 elephants to their deaths to feed the Japanese market William instead plans to send thousands of whale corpses.