Personally, I'm not keen on the idea of sending SPR's to a burn address, but you've taken the time and effort to put together a reasoned argument, so we'll put the suggestion into the pot and let everyone have their view.
We are just going in a different direction to SPR. All the development currently within SPR has a two year history but we've reached the point of divergence. The two projects have different paths, but they will still both exist.