IMHO this test is too simple. If you refer to a proper test like the ones they do on Anandtech, they not only test the coolers' performance at idle and load, but also how high each cooler is able to overclock, i.e., the cooling ceiling of each cooler. For example, they tested the CM Hyper 212 and found it to be very close to TR-120EX at lower overclocks, but once you go higher the Hyper 212 will saturate faster, meaning at a certain point it will not be able to cool any more, while the TR continues further.

Another thing to consider, some reviews have pointed to the Xigmatek being noisier than others, especially when the fans are maxed out (which they needed to do in order to release the full potential of the 1283). TS should have tested both min and max fan speeds. The Noctua and TR-120EX have more fins and are deeper, thus needing higher airflow but are designed such that noise is minimised.

That said, at the current settings for this test, and assuming one doesn't need to OC higher, the Xigmatek in this review does indeed seem to be performing really well.

Cheers