There's Labview, Scratch, and now I think, Luna. Are visual programming languages really now so common that we need to specify "text-based" for new computer programming languages?
It makes sense in this context because Switch is a game console with touch screen and game pad (joy cons) as default input modes. Both of those types of input are not really typing-friendly, so one may expect that the language will accommodate for that and be fully or partially visual.