I don't think it's fine. I'm sending Form 4868 to the client. The extension voucher lists the client's name and SSN, but has my firm's address under part 1 (identification). This is happening on all 1040's. Seems pretty clear it's a computer programming error on the part of PTO.
Thank you. Seems silly to have the firm address as the default. On a side note, I'm glad there is this form. The PTO phone and chat support are completely useless - they have never been helpful. As an example, I asked this question and his recommendation was to change my firm's address so the extension form would look correct. And the worst part, he was really rude.