The SEC in my opinion is very unpredictable. Especially when It comes to crypto.

They sued Ripple
They let Coinbase on the stock market
They let Ftx get away with everything
They sued binance, coinbase and kraken
They rejected all the spot Bitcoin etfs but allowed an 2x leverage etf to launch.

So who knows what the outcome will be with this blackrock etf. Everyone will think it will get rejected but in the end it might actually be approved.