So what exactly are you saying the root cause is then, Nubian?
Given that "my" way of dealing with it would sort "this" particualr incident out, how would "you" deal with it in your quest to identify the root cause?
Let me give you a starter for ten:
IF you think for one minute that altering or highlighting the landing spots, is a part of the ROOT cause - forget it.
This is a red herring - tidying up the site.
A first time visitor will apply sound airmanship and SA and determine 'independent' of any ground markings - on where to land their helo. Making a landing spot compulsory, based on markings SHOULD not prevent the pilot from surveying the site before committing to land.
Now that this 'option' is out of the way, please tell me what the root cause (now) is?