There's no reason to believe that what Evans found was the mythological Troy (note the "mythological"). Maybe it was the city called Wilusa by the Hittites, or maybe it wasn't, and maybe Wilusa was Troy ("Ilion") or maybe it wasn't. There's no way to know for sure.

https://en.wikipedia.org/wiki/Historicity_of_the_Iliad#Hitti...

Homer certainly didn't give a super detailed description of Troy's location. The Iliad is an epic poem not a historical account. The Homeric Question is a debate almost as ancient as the Iliad, after all.

https://en.wikipedia.org/wiki/Homeric_Question

As to Schleimann, he was certainly all too ready to "discover" elements of the Homeric epics. For example, "the mask of Agamemnon":

https://en.wikipedia.org/wiki/Mask_of_Agamemnon

Or "The Jewels of Helen":

https://en.wikipedia.org/wiki/Priam%27s_Treasure#/media/File...