Yes, it "offers an alternative to", but by 69 saying it deprecates 36 & 56 - what that means is that the approval of 69 will result in the deprecation of 36 & 56. I don't see why anyone would want multiple competing solutions for this.

All deprecate means is that 36/56 are losing "favor". There's nothing about them that indicates that they were particularly well thought out. They checked a box that was needed by the App Store. It was "good enough" for the moment, but we've moved beyond that now.