I dont know how many T2's test. However, if i listened to my diabetic nurse, and accepted that there is nothing I can do to alter my blood sugar levels except take the pills, and keep off chocolate, then testing wont tell me anything anyway.
I test to alert me to what I can and cannot eat, and how exercise affects my bs. If I believe my nurse, that what i do and eat dont affect my blood sugars, and that I cannot control my levels, then testing would simply not help. It would give me another figure to get upset about.
BUT if I was informed about what to eat, when, how my choices affect me, and how to use my meter as the compass to take control of my diabetes, then there is a purpose for testing.
So maybe people dont test because, due to the information they receive from their healthcare team, there is no point to it.
And as most of the people polled about whether or not they test are probably in the "uniformed and misled"category, then I can quite see why the testing figure would be low. Why test if you are told it wont help?