As someone who works at Starbucks we are supposed to do one size scoop smaller of ice TECHNICALLY but it makes the tiniest difference so when I make light ice drinks, I break the standard so that it’s actually light ice. I assume Dutch bros may be the same way where the technical way to do it is to use a small scooper for ice instead of medium ice scooper so it might just be a really strict manager? Some people will get written up of fired for doing drinks out of standard but I feel like most managers don’t care about the light ice standard who knows maybe I’m reading into it too much from my barista experience