Did the hairdryer trick with my male but he ate backwards also. I was really glad he ate F/T so the direction it went in was strang but not as significant at the time. He wanted nothing to do with F/T before and literally would go to the other side of the enclosure. He ate a live backwards also, who knows. Probably just a young snake thing.
I’d never try and stop them and correct it that seems like the worst option. It’s really odd looking, I have seen some youtube video of bigger snakes doing it also.