Maybe you can use this in your next interview though and figure out a way to spin your lack of experience with the benefits of a willingness to learn and how that helped you to solve a difficult problem in the past. Just snow balling here… I honestly think it was probably just an easy way to tell you that you didn’t get the position. What are the chances four different groups of people would look at a portfolio and resume that clearly states your experience, and then go through the time and money of an interview process to then just say you don’t have the experience? It doesn’t make sense.