Thats the entire point. Holiday events were specifically designed to replicated every year with minor variations. Theres no point in wasting a month of development time for an event that will only last for a week; it would be better to dedicate that time to creating permanent content. (However, we havent seen much new permanent content either recently). Also, making a different event every year, three times a year, requires a lot of creativity; and knowing Graal, lists of ideas tend to become exhausted quickly. Then 90% of those ideas, most people wont like. Therefore its a better idea, and is much more efficient to standardize holiday events that most people generally agree are fun. So sorry you think its "old" and "recycled"