It is to me ;
as you know we used to practice chi sao 'set moves' nose to nose with the least amount of rection or movment so we could simultaniously defend and attack off of very slight movements; after it becomes a reaction you do it closed eyes or blindfolded just on feeling the oppositions intent. That builds your contact reflexes between your forearms into your brain faster and you naturally deal with it in the shortest fastest moves.Controling when theres a threat releasing with a strike up any holes you feel in their defence.
Its great for flowing around grappling arms like in a clinch on the ropes allowing you to feel your way out and flow with the force then explode out.