Main title validation not working on AJAX detach leading to data loss

This works to substitute a title, but I still end up in a bad state. The form validation works when creating the H5P is in a unique form, but when it's within a multi-value field it fails. For example, we have it as a media item that can be added in a multi-value field and that submit/save button (for the field) isn't recognized in the same was as the whole entity submit button.

Is there a better way to detect what type of form (single value field form within a node vs media vs multivalue field etc) it is and therefore intercept the form validation more universally there?