Interesting that they aim to have a single resolution-independent logo ("This tied into another goal of having the image hold up with greater clarity at smaller sizes" and "with high resolution displays in mind"), while traditionally, advice was to tweak icons to their display size and resolution. For example, https://developer.apple.com/library/mac/ipad/#documentation/... says "redraw art as you scale down" and "do not use the standard-resolution 32x32 icon as the 16x16@2 icon". Similarly, http://msdn.microsoft.com/en-us/library/windows/desktop/aa51... says "Simply scaling down from the 256x256 size does not work" and "As an icon gets smaller, transparency and some special details found in larger sizes should be sacrificed in order to simplify and get the point across."

This isn't purely by technological choice ("we want a svg logo"), as one can somewhat build a svg where the level of detail varies depending on display size (http://timkadlec.com/2013/04/media-queries-within-svg/).

So it's either a deliberate "it's better that way" choice, or a "better one really good logo than a couple of less good ones", or they weren't aware of media queries, or they don't think them supported well enough.