That must just be your store, at my store, anyone who works has no chance of moving up (there was 1 but that was it). Everyone else just puts their work off on others, ignores their workload, etc.
Congratulations.
It's great to hear that in some places Spot does do what it brags about.
So many of us have seen the opposite so the pessimism should be understandable.
One good example is nice, heartening even, but it hardly proves anything.