Webster's rating: US SEC does not approve Bitcoin ETF application has "double standard"

Weiss Ratings, a cryptocurrency rating agency, said on Twitter that the US SEC recently rejected the Bitcoin ETF application because the bitcoin market is not mature enough to support the ETF. So how do you say now? Is the SEC suspected of having double bids? It has no opinion on ETFs that pass illiquid commodities such as uranium, but why is BTC not working?