you're not missing anything, marpoo. the example you give would count as cross country.
when i showed CASA my logbook for ATPL i asked how they would verify the cross country time. the guy just laughed. they take a copy of some of your logbook to keep.
my advice is to be consistent in your calculations. if you've got 1500 hours then the 200 hour cross country requirement shouldn't present any problems, so you could only count what is unambiguously cross country without much penalty.