There are several differences in the produced SVG depending on the way a user takes for export or safe.
A little example:
I need for technical reasons the properties Width and Height for the artboard size. When i export from AI to SVG using 'export' this property is added if the checkbox for export the artboard size. Now, open the produced SVG again and simply pick safe, and the properties are gone.
There are many more differences.

Would you please change the SVG generator to make more common results?