Perhaps to support demand for the products with recent price hikes, and/or the upcoming Mac Studio with M5 Ultra, rather than have customers sit on the sideline

Perhaps to support demand for the products with recent price hikes, and/or the upcoming Mac Studio with M5 Ultra, rather than have customers sit on the sidelines thinking they'll wait this generation out. I am still skeptical that Apple intentionally leaked this because they normally are so tight-lipped, but there are reasons in favor of leaking this.