No, but you should maybe adding the Low Pass filter at for example 16.000 kHz or higher, but you can absolutely have it at 12.000 kHz!
With another curve that the one I only put up with no fine tuning!
And! It’s depending on your ears, taste and equipment, so there’s no wrong or you can’t have it like that!
It’s totally up to yourself how you setup a EQ, because it’s your ears, taste and equipment that decide it!
It’s why I only used the usual bad and good frequency when I put up my EQ Settings and a explanation about who’s frequencies!
Because I can’t setup a perfect EQ Setting for someone else, without being in that room and using that equipment!