A beer from japan arrived in my city: Kirin Ichiban. The main argument that the brand gives is "100% malt, first press beer". In the link above they explain a little of it.
In my experience with homebrew, where I am focused only in my pleasure, not really in the money spent, I understand that sparge is very usefull to take apart all of the sugars off the grains. Thinking that we are talking about a industry, certainly they are more concerned about brew efficiency and money than me.
Can we believe in this assumption or its only about advertisement and fooling people? Thanks in advice.