I agree with you, but your analysis made me rethink earlier trailers.
Obviously Spidey is gifted this cool suit, and then Stark takes it away. Essentially, if you need this suit to be a hero, you’re not a hero. Fair enough; Stark has needed to go toe-to-toe with bad guys without his armor before. As a result, Spidey then has to go out in a hoodie for the finale.
Is it possible then that Spidey rejects the suit at the end of the movie? You’re a real hero, you can have your over-powered suit back now, would be a dumb reversal.