Looking at how high the molded attachment is (on the hood) I believe it is the attachment for the windshield latches.
I agree with you, there is no attachment point for the hood hold-down latches.
Weird that it wasn't molded to the hood.
I guess they intended for the builder to pose the model with latches disconnected and hood open.
With this much engine detail, you would not want to permanently fix the hood (in my opinion).
If you pressed some plasticine or molding material against the hood - take an impression of of the existing latch attachments.
Then you could cast a couple of attachment shapes and glue them to the hood.
...
and before I finished my post, you posted your latest pics.
The attachment is a bit bulky, but it works.