Please see our roadmap update here.
In it, it says (emphasis mine)
It’s time to disentangle JUCE’s Drawable class (which wraps SVG) from JUCE Components. At the moment working with any SVG data requires that you pull in the juce_gui_basics module, which is a substantially heavier dependency than just juce_graphics , and this slows down the compilation of helper executables required to build via CMake. We will also use this opportunity to evaluate a third-party SVG parsing library to bring our SVG compliance up to date.
Others have since pointed out that the JUCE SVG functionality may actually be better than most other 3rd party libraries so when we get to that we’ll have to take a closer look.