Yes, the literal words of Matthew 23:9 are very clear. Except that Jesus himself did not seem to follow the literal words. Even using the term 'father' for God presumes we do have, and use the term, for our human biological father-son relationship; and Jesus has people call their human fathers 'father', as in the 'prodigal son' story.

People called Jesus the 'son of Joseph' and I would presume that as a child he called Joseph 'father'.

Individual texts make a nice objection to having someone use the title 'father' for priests, but it is not as absolute as it sounds. Even St. Paul claimed to be 'father' to his 'spiritual children'.

If we have no biological 'father-child' title and relationship, using the title for 'our Father, Abba, God' would make no sense to us. We need a human father before we can appreciate a Divine Father.