As one of the main proponents of this proposal, the main objective is to not have to maintain millions of data records in perpetuity - as most of these claims are likely from dead accounts, Splinterlands assets held outside the game by people that never played, etc. Most people that were active participants in Splinterlands have likely already claimed their air drops, at least before the Tech Modernization of the SPS page removed the buttons. Hopefully this proposal, and adding a link back in, will give anyone that is still actively around a chance to claim any that they missed. I think it was an oversight to not have an expiration date on the initial air drop claims in as part of the initial white paper and to me it makes sense to just have a cutoff date where the SPS air drop data and code can be retired.