Based on this history:
I would surmise Elon recognized trying to sell Plaid+ before delivering Plaid was a huge Osborne effect mistake. Once thousands of Plaids have been delivered and paid for, he will announce Plaid+ is for sale, if history is any indication.
Elon Musk: Tesla is not going to 'refresh' Model S and Model X, only 'minor changes' coming
Tesla CEO Elon Musk claims that the automaker is not going to ‘refresh’ the Model S and Model X and...
electrek.co
I would surmise Elon recognized trying to sell Plaid+ before delivering Plaid was a huge Osborne effect mistake. Once thousands of Plaids have been delivered and paid for, he will announce Plaid+ is for sale, if history is any indication.