I think there are degrees of 'lostness', ranging from 'I knew where I was a couple of minutes ago' to 'I haven't got a clue'! I think it's useful to get in touch with someone in the early stages of lostness rater than carrying on and hoping it'll all work itself out. Anything that encourages people to ask earlier has to be a good thing - even if it's just for confirmation.
Just as a matter of interest, how many people here have been a bit lost, and how many of those have admitted it on air to D+D? I've never got in touch with D+D but I wouldn't say I've never been a little bit uncertain where I was? Has anyone here admitted to being lost to D+D?
Now, I'd get in touch and admit it! However in my early flying days, I think this advice would have come in very useful. It's only now that I am more experienced have I got the confidence to ask for assistance if I need it.