He backchanneled on Korea too.
Khamenei got international stability and long-term sanction elimination prospects, we got rid (illegally) of someone we also saw as destabilizing.
It's only implausible if you divide the world into black and white instead of seeing it realistically the way it is and understanding peace is way undervalued. And the libs take a black eye for screaming omg we're all gonna diiiiiiiiiiiiiiieeee...
The real politics happens where we don't get to see it. I think it's far less crazy than it seems.