I think it still depends on the influence of this tutor in the school. If you don't pass the school line, it won't inform you to have a second interview. So it depends on whether the tutor can get the school to agree to your second interview.
The second interview is also a result. Some schools still attach great importance to the second interview, but in any case, there must be a second interview. Even if the tutor wants you, you have to retake the exam.
If you ignore the second interview, it will be bad for you, unless you are a student of this teacher and do experiments with him. He knows you very well, but generally such students are certainly not particularly bad.
In short, the second interview should be paid attention to, and the school can't ignore the performance of the second interview. Especially when there are many applicants and few recruits. If I only hire you, it's almost acceptable to behave poorly, but it's impossible to be nothing.