You shouldn’t assume anything, you what they say about those that do 
I lived in Michigan/Indiana for 60 years of my life, close to Lake Michigan putting up with the lake effect snows every winter. I never once wanted to know the water equivalent of the snow. Nor have I ever known anyone personally that has ever wondered. What I always wondered was how much new snow we got. A yardstick nailed to my fencepost told me that. Yes, I’ve had a weather station for 20 years, 15 of them in Michigan.
I dare say that they percentage of users that want to know is a very small fraction of the total consumer base. If the unit doesn’t fit your needs, use something else. Don’t berate those that don’t need it or don’t care.