Ugh, why do people call Larab of God thrash? They are metalcore, albeit really good metalcore.
They're no different from any other metalcore band out there; breakdowns, fast d-beats, high-range growling, detuned guitars. Hell, they even have the same metalcore-produced sound.
If you want to call them thrash, be my guest. You might as well be calling Slipknot thrash, or calling Job For a Cowboy death metal.