Because he's a Turnbull acolyte! He was too familiar with Turnbull during their time in power, that is why it was negotiated by Turnbull for Morrison to become leader, instead of Dutton! This was one event Turnbull actually got lucky with.
This made sure the left in the party were still in control of the party. If Morrison doesn't get out of Paris, scrap the CO2 reduction levels and reduce immigration significantly, then he will go the way of Turnbull.
