Yes. The laws of physics apply regardless. However, as you realise, making the cable shorter will reduce *both* the series L and shunt C values. But for a given length you can't beat the above, so there will be a minimum on one value set by the value of the other.
I suspect the reality in this case is slightly different. That someone says "choose a cable with lower capacitance/metre" as a way of indirectly saying "you need more inductance". Perhaps to avoid admitting a given amp isn't happy with the loading without sufficient inductance in the path. i.e. blame the cable.
The snag with that is someone might simply use a much shorter cable, so not get the 'benefit' they expected.