Ethereum (CRYPTO: ETH) proponents might still be optimistic about a spot ETF approval but analysts tracking the developments increased the odds of a rejection by the SEC. What Happened: Analyzing a March filing submitted by BlackRock Inc. to the SEC over its ETF application, finance lawyer Scott Johnson discovered “official” signals of the regulator viewing Ethereum as a security. The SEC while delaying the approval, also sought public feedback on whether the applicant properly filed its ETF listing proposal as a commodity. Johnson noted that this question was asked for all the ETF filings and…