The author of this article is turning inches into miles. SAFTs aren't dead. The SEC is alleging Telegram has failed to deliver the promises it has made, so the SEC is pre-emptively stating they need to halt delivery. Presumably, once they complete their promises they'll be able to deliver Grams.
From the SEC Complaint:
The Whitepaper spoke of potential future products and services that investors
could use in connection with Grams, but also made clear that these products were not available at the time the Offering began and would not be available by the time Defendants delivered Grams to Initial Purchasers.
Telegram, however, does seem to be in a pickle regarding the PoS consensus model. The SEC seems to be alleging that in order for the network to be sufficiently decentralized, having only qualified investors staking is not enough.
Also from the SEC complaint:
Defendants knew, however, that to actually implement the TON Blockchain in the real world, the project would require “numerosity”: a widespread distribution and use of Grams across the globe. Indeed, by definition, the TON Blockchain can only become truly decentralized (as contemplated and promoted in the Offering Documents) if Grams holders other than the original Grams purchasers actually stake Grams and, thereby, act as “validators” of transactions on the TON Blockchain. Stated differently, if the original Grams purchasers alone all immediately staked their holdings, the TON Blockchain would be centralized rather than decentralized and, therefore, subject to misuse and majority attacks. This fundamental need for additional Grams holders demonstrates that the TON Blockchain was designed from inception to require the Initial Purchasers to immediately distribute their holdings to the public.