Mind you, that's what they thought about the city of Troy, too. Don't be too surprised if someone somewhere stumbles upon the tomb of king Dhrutarashtr!
Doesn't preclude finding a shrine of some kind though right? What (if anything) was the equivalent of garlanded photo-portraits before cameras? Sketched/painted portraits?
Shrines only exist for deified figures. Some kings did successfully deify themselves, to the point where they are still worshipped as Gods. This king wasn’t deified.
Deification of kings sounds unusual, but it was quite a common tactic of political control in the ancient world. The Roman Imperial cult was quite successful at this.
I only meant it loosely, in the sense of any kind of physical thing or collection of things used to represent or remember the deceased, like a photo adorned with a garland.