You're probably right. However, the original poster only provided us with the volume, you still need to know the original gravity and expiration date on the vial to say that definitively. A three day fermentation is fast, but it's a small batch and was fermented hot.
To the OP, it's a good idea to make a starter when using expired yeast. It'ss also good practice to know your pitching rate beforehand and make a starter accordingly.