Babelfont added a lot of complexity to Runebender I am not happy about. UFO had the right idea: cross-platform, cross-app, human-readable, future-proof source files. Its execution was not perfect, especially for variable fonts, but the Glyphs format was a regression in many ways. The font industry should spend less effort accommodating Babelfont and Glyphs, and more fixing UFO or making a better format with the same cross-platform, cross-app, human-readable, future-proof source files goal.