Room temperature is really worthless. It's the temperature of air going in to cooler that is important, not what the room temperature is.
Their tests results are how well their system is cooling in their room.
I don't have their system or their room.
I could care less how well their system cools.
I want to know how well the cooler being tested cools.
Just changing coolers in a system usually changes the case airflow and therefor cooler intake air temp... Changing cooler fans does too.