It's somewhat hard to say how much usage the device got from this. That said, with 101 power on hours, probably not that much. But I wonder if power cycles for the SSD can be considered to be 1:1 with system power cycles, 3000 cycles with 101 hours usage seems to say the answer is "no". So it may be reporting cycles as putting powering off the SSD hardware much like putting a HDD to sleep.
Not all refurbs are going to be returns. Some will be repairs where the original buyer got their unit swapped out so engineering could take a look, lack of repair parts, etc. There isn't enough usage on this one to likely be a trade in.
As for the TBW number, it seems to more be like someone who tried to put it through paces as a content creation machine before deciding not to keep it.