I think the best course of action here is to just tell the therapist that what she said felt invalidating to you, and ask why she said it. How she reacts will be a good indicator on whether it was intentional and whether she is a good fit for you.

She may have been trying to give you (seemingly unasked for, based on your post) passing advice without endorsing the sentiment behind it, and just came off badly. If you don’t want her input on what she thinks would make you pass better, you can absolutely tell her that. You get to set boundaries with the therapist, too.