Still would have to copy the value of the resultant virtual temperature sensor to a variable to do things like calculate delta between outside and inside temps so this helps but adding a sensor value to a variable is likely still beneficial.
I am still frequently having to copy a sensor value to a local variable and then perform variable math.
Would be great if there was a more generic Math capability with a Sensor/Variable switch to enable us to choose the terms we wanted to use in our Math equation.