Figma SVG import incorrectly treats '1 em' font sizes as '1 pixel' font sizes

When importing an SVG file into Figma, text sized using pixel values renders correctly. However, any SVG text that is sized using ems (font-size: 0.8em;) is interpreted as 0.8 pixels instead of 12.8 pixels (assuming a 16px browser default font size). This makes all svg text look microscopic.

So an SVG that renders correctly in the browser, will look like this (note the microscopic text):

If I edit the svg file to convert the ems to pixels the I get the expected result:

Figma should be converting the EM values into appropriate PX font sizes (e.g 1em = 16px), not treating 1em as 1px.

I have included a sample SVG file that demonstrates the problem.