It IS official you idiot. The rest is just for show. Ohio forced them into this nonsense because they were going to keep the democratic nominee off the ballot.
You are not getting it, Hap. You need to do more reading. Until you DO get it. Of course she'll do a "formal" acceptance at the convention.
Democrats still plan a state-by-state roll call during the party’s convention, the traditional way that a nominee is chosen. However, that will be purely ceremonial because of the online voting.