Answer I received from @TeamTurboTax on twitter: Schedule SE-T is for those who were wanting to delay paying a portion of their Social Security taxes for self-employed income, this is optional. Since you didn't want to defer, the way you proceeded is fine.
(I had deleted Sch SE-T and then was able to sail through the review and do the E-File! Deleting the Sch SE-T did not change my refund amount.)
