The short stubby wick is by design. Since it's a bottom feeder, it doesn't need the length to reach the bottom of the tank where the juice is. The stubby wick is already there, submerged in juice.
Edit: FWIW, I'm a day older and a day wiser and have learned that these are not 'bottom feeders' as I called them. That term is for a different rig with a bottle of juice down below the atomizer and a tube that runs it up to the atomizer. The T3s, eVods and similar cartomizers are 'bottom coil cartomizers', aka BCCs.
You may now return to your regularly scheduled programming.