So according to that though there has been 7 thomas variants of the same card that have been graded all graded 8 or higher bar yours and the other /75 that is also a 7?
So in reality every chance of a higher grade from raw and I would still rather buy raw at market than buy a 7.5 at market as tbh what's to lose.
And as much as i want to believe you no card gets a 7.5 that looks perfect, there is clearly minor imperfections that are causing that grade.
But if you had a price in mind please lmk.