Sub 37 "extra" modulation sources

I am puzzled by two “extra” modulation sources, “SINE LFO” and “NOISE LFO”. Both are already available as their own switch positions, so what is the point of having them once more? There must be a reason and I am probably getting something wrong… what is it?

The LFO knob has triangle and sample and hold/random - not sine and noise, so they are different.

I believe the noise in the modulation sources is digital versus the analog of the noise sound source in the mixer, so it has a different texture.