I find it lacks some easy way to do alignments or grouping, which makes editing frustrating. Could be a good language re-design opportunity.
either way the number of people willing or compelled to learn it will be tiny. and it hence becomes a niche, perfect for a long-term side project but with no real return.
my conclusion was to stop looking and use D3 or custom code ( good looking charts for humans).
this project is trying to do the same, balance verbosity in text with granularity in the charts with a narrowish usecase : agent consumption.
Good news is that AI do make new language a bit more accessible than before! If your agents can use it well and you can steer easily, it will naturally be good adoption.