"logarithmic" here refers to the number on the scale being logarithmic in the sound pressure level. Restated, power is exponential in the knob value, which roughly matches human perception of a linear increase. An actual linear function is far too slow.

Got it, so the sound pressure is logarithmic, but the sound power is exponential, and you can control both at once with one knob, and they, align, quite well I guess.