Yes, Christ gave authority to his disciples but scripture says nothing about that being passed down to their "successors". If it does and I missed it, please give me that scripture.
you are correct sir, i did not see the successors part.
i will add, we don’t accept “sola scriptura”, and the Apostolic Tradition has always taught apostolic succession.
by your reasoning, Matthew 28 could have been just for the Apostles, yet every church today teaches and baptizes.