Because in software development it's often quite difficult to get an accurate representation of the number of bugs that exists in a product purely by running it in a closed test environment.
"Live" exposure is absolutely essential in order to properly debug a product - and I'm sure you yourself would agree that nothing would infuriate you more than to find out a mod handles money incorrectly
"Live" exposure is absolutely essential in order to properly debug a product - and I'm sure you yourself would agree that nothing would infuriate you more than to find out a mod handles money incorrectly