How was the front part of the Umbrella at the Mall able to rip Austin's pants off that easily? It hadn't even been attached.
Why would Dez have known Austin's secrets anyway, like of his fear.
Despite what was seen in the Flashback, Ally is not afraid of Pianos despite having Stage Fright, which she uses when writing music for Austin.
Austin had no problems with Umbrellas in any previous episode.