In this context "adiabatic" usually refers to "slow continuous transition" (even if this is not the literal meaning of the word). This device uses the circuit model (discreet gates), not the adiabatic model (continuous transition between hamiltonians) of quantum computing.

Your initial comment also had an imprecision that is pretty common: 1. Adiabatic quantum computers and circuit model quantum computers are equivalent models. 2. Dwave never constructed an adiabatic quantum computer, rather something they called a quantum annealer. These are interesting devices inspired by the model of adiabatic computers, but we do not have a reason to think they are better than classical computers.