Do I have too much bone loss to continue braces treatment? (photos)

Hi there, I’ve had braces on since 2020 December. I have a overbite. My ortho recommended I get tooth extractions in my upper teeth to treat my overbite. I have been in continous treatment except I moved cities a bit, and treatment stopped for about 6-8 months. I got my extractions in Jan 2023, and have been in treatment since. But I just moved to a new place where I asked to have my treatment continued. They say i have too much bone loss to continue treatment. Is this true?