There is no truly honest way to answer the question. The matching of a child to a yeshiva is a challenge not unlike that of a shidduch. Perhaps a slight difference is that the couple expect to find the other dissimilar, and are somewhat aware of the need to learn to adjust. And that adjustment requires each of them to participate in the changing. With yeshivos, it is considerably harder (for good and bad reasons) to adjust to the talmid. All change requires adaptation, but yeshivos are more apt to insist that the talmid adapt to them, and rarely, if ever, the other way.
So, without knowing the child, and all the issues (besides the trouble with the past hanhala), it is impossible to give an intelligent answer.