It's based on my personal experience. Very subjective.

I feel that CJK user experience or other features that the core maintainers don't use isn't taken as importantly as simple code in a lot of open source software, especially the ones that wants to be 'suckless'. I would truly be immensely grateful for this author if this is not the case and every feature of TrueType gets implemented - especially if with more simple & lightweight code.