是否允许TL等级低于TL3的用户编辑wiki帖子标题?

Thats exactly the question. Our min trust to edit wiki post set to 1
We modeled that and TL1 can edit body of the post, not title.
Per

user can edit title only if he.she is TL3, so is it correct that the ONLY way of allowing users to edit titles of wiki is to grant TL 3?