Yes, unless you don't want to receive money from sponsors.
We try to streamline the experience both for sponsors and organizers. This means as well, that it should be as easy as possible for sponsors to pay the money to the organizer.
The Stripe Account is the necessary financial link between the organizer and the sponsor and makes sure, that the money arrives directly on the organizers banking account (without by the way touching SponsorMyEvent's banking account)..