But I still don't like the idea behind, melting dash and Commands. I
think keep on using [alt]+[f2] is a better choice. Anything else
would confuse the "normal" user.
that's a valid point, one could make it so that the ALT+F2 Dash looks and behaves more like a Gnome-Terminal on steroids, while the "ordinary user" Dash does all the NLP stuff and looks less geeky at the same time.
Including simple NLP would also help get away from "search results" with only 5% relevance to "truly relevant suggestions" with over 50% relevance to the semantic human input query.