A Better Bluesound AC Cable?

Can anybody explain why use a PC which only has a 2-prong plug?

Wouldn't a figure 8 (C7) IEC to 3 prong plug have an advantage over the 2 prong type? 
Noise would be drained via neutral and ground conductors to the 3rd pin on the plug (a proper ground).

I had the Pangea and it was loose. 
Now I have the AudioSensability cable, it’s a good fit and it has improved the sound. 

I’ve been wondering this myself for my Node 2 and someone here recommended a Nordost Purple Flare as a good replacement. I’m also eyeballing the Shunyata Venom 14.

There’s an Isotek C7 cable for a decent price, although I’m not familiar with their PC’s.
I do believe that a cable using isolated neutral and ground conductors tied to an earth ground (3-pin connector) would be the preferred design for draining noise vs. a 2- pin design.

https://www.upscaleaudio.com/products/isotek-evo3-premier-power-cable

I think the Shunyata Venom would be a good choice, but it's another cable without an earth ground.