Computationally, I don’t know. One advantage is related to the Maxwell velocity distribution curve, where the function is related to e^-(1/kT) where 1/kT is replaced by B. I would probably say, when it comes to explaining temperature non-rigourusly, it seems simpler in the current scale, but if we used the g(x) version, not much would have changed. Our scales would be calibrated differently, boiling water would be 0*C and the ideal gas equation would be PVT = nR but there wouldn’t be any contractions/problems or as you put it, loss of information