Yes, I have. Ecuador cannot hide behind international agreements in order to shelter a criminal wanted for serious crimes in multiple countries.
But can the US and Britain hide behind similar agreements in order to shelter those accused of treason and subverting the state in countries like, say, Russia, Iran, China, etc?
This is so reminiscent of doublethink, where people are both aware of a lie yet also believe it because it's in the state's interest.
No, the West (TM) cannot with a straight face claim the right to shelter dissidents in the embassies in Russia, China, Iran, or X-istan, and then claim their sovereignty is violated when someone who hasn't even been charged with anything runs into an embassy of a country whose government they don't really like. This is not the 19th century where Britain and the US can openly trample on international laws to fit their selfish interests. The West is no longer dominant.
Get used to it.