I think you are overreacting. We are all disappointed and frustrated but this is a very trivial issue. There are obvious pros and cons to playing a 16 year old who isn't ready yet - Hughton's approach is entirely justifiable.
Pretty much this. He is 16 and not ready to play in the first team. Hughton took Tilley on the trip for experience and was bothered enough to engineer him making his technical "debut" which the young lad will have appreciated.