Nobody's getting at you Foz, they're just answering your question.
There's simply no need to land further away when there's a perfectly suitable landing site nearer the patient. The Square is assessed as suitable landing site by the experts (or it wouldn't be used) so there's no need to land further away at one of the parks.
I don't think you should read too much into the delay between the helicopter landing and the patient arriving. There could be many reasons for that.
Heliport