[PinguTS]

So what is the advantage and benefit over SVG with embedded PNG?

Regarding logos: most corporate logos use even less colors. The reason behind is a follows: a corporate logo works well displayed in its full bright, but also works well as a small icon printed in black and white. Yes in the corporate world, people still print and many still print in black and white to save costs. Here you can see how good logo design works, how a good logo works in is full bright and also very small: http://responsivelogos.co.uk/ You also want to reduce the number of colors, because normally those colors are special colors from standardized color palettes like Pantone. In offset printing for advertisement material, those colors are not mixed on spot, but special colors and they are expansive. For that reason in good logo design you try to stick with 1 color besides black and white, or a maximum of 2.