Pinning all the hopes on ETF seems like a lost cause. the market was operating well without it and there seems to be no reason to give so much importance to ETF that the market is coming to shambles. Also it seems to be unlikely for it to be approved again.
people are excited about it because
1. when blockstream completed their contract and got their contractual deadline of segwit by november 2018.. they got paid. and they wanted it in BTC. so the investors bought BTC (look what happened from midnovember to december)
2. if you look at the markets and see the order lines and see it only takes a few thousand btc to move the price by thousands. then when an ETF wants to add another "basket" of coins to their trust to offer more shares once the ones already pre rserved and share divided have been bought guess what will happen