The bisect extensions feature is really useful, however sometimes it is necessary to have one or more specific extensions always enabled, while finding the extension interfering in order to actually reproduce the desired and faulty behavior.
For example, if I have a weird behavior when using code assist in a Java project, I would need to have the Java language server extension always enabled while searching for another extension that causes problems in combination with that extension.
It does not help if by chance the first 3 bisect iterations do not contain the Java language server extension, as I cannot verify whether the problem exists or not.