Nope, NOT on the "lid." They used multiple descriptions, none of which used "outside" or on the "lid" of the trunk, and if it was on the lid itself they would have said so.
Without having to be told, clearly it was on a surface and not floating "in the trunk."
It offers varying terminology to describe where that DNA was from:
"interior trunk opening"
"the trunk"
"edge of trunk opening"
"interior of Enrique G Arochi's trunk"
It's obviously going to be on some part of the metal that forms the trunk. My take is that it is speaking of the interior part of the trunk body that comes upward from the rear of the bumper, and is covered entirely by the trunk lid when closed, and on the inside of that.
DNA in that spot would certainly be inside the trunk compartment and leave no room for doubt that she had been in there imo.