That is not the point GA was making. It is from the perspective of an intruder. Did an intruder know the Tapas 9 had trouble seeing the apartment?
Whilst The Mccanns were not in the best position to see the apartment, Rob, I dont think that is true with others in the group.
The bushes had just been pruned back and the Patio area was illuminated by the street lamp immediately opposite
Please do not forget that I have been there and eaten in that Tapas restaurant and weighed up the view of the Patio area that any intruder would have had to pass thru. However the view of the route to the patio window to the parents bedroom was not illuminated in the same way. If that patio window had been left unlocked then I think that it just might have been possible for an intruder to have entered via that route.
Many moons ago, John highlighted the fact that although the patio area was illuminated by the street llamp opposite, much of the stairs up were in the shade. From a careful analysis of the exact light source position I believe this to be true.
I also think that the bedroom patio door was hidden from the Tapas group by a big bush and that the garden edge of the balcony was in shade. The steps up (not illuminated) went up to the shaded portion of the balcony and across to that shrub hidden patio window.
However even if an intruder was going across the narrow shaded area of the balcony (and so his actual body was not illuminated) I am pretty sure that his body shape would stand out like a sore thumb against the illuminated area of the balcony behind.
Hope this is readily understandable.
PS I still think that via the unlit black hole of the front door is the most likely entry point.