Yes I agree we shouldn't denigrate the pilot's performance and I agree the situation would not have been conducive to the pilot being in great physical shape by the time in the landing! I have not flown in Australia but Florida in August with 35 degrees and insane humidity can't be far off...it does definitely affect one's performance.
Very similar, but 100% different.
Florida, 35 degree's ( i can still wear long pants and drink hot coffee) 100% humidity. You are soaked through. Despite the clear visibility of moisture on your body, you actually lose less moisture. The air around you is already saturated, therefore it cannot remove the moisture off your body, and the cooling begins. Think about basic met if you need and heat transfer.
Mangalore on the day in question. 42 degrees and zero humidity. you sweat and the atmosphere sucks it straight off you, so you sweat more to no avail.
Surprisingly, the 42c 0% humidity is a lot more comfortable than 35c and 95% humidty but it will kill you oh so much faster