Well thats a disingenous comment if I ever saw one.
Lets take a hypothetical.
Lets say the Druid as we got it in the UA was the final, OneDND version of the Druid.
Now we fast forward, and Jimmy is saddling up with his spiffy 2024 Druid, but then Tommy comes in with the 2014 Druid.
Tommy does everything Jimmy does but better, earlier, and with more flavor.
Jimmy then comes to the forums and joins the constant influx of people who will be pointing out how the 2014 classes completely screw with the game and cause massive disparities.