I'm always a believer of every day use and adoption. That's what'll make Bitcoin great(er).
I think it's just people's desperation on wanting some sort of 'big news' that is going to ignite everyone's interest again and see rapid price spikes. If the ETF does happen then it will get bitcoin back in the news even if it's only fleeting which is always good. I'm also skeptical of how much of an effect an ETF will have on bitcoin price long term though, especially the Winklevii one. People can already invest in bitcoin if they want without putting money into an ETF, but even if that one did get the go-ahead wont the twins just be using coins from their already huge bitcoin stash as opposed to buying new ones off the market? Wouldn't really make sense for them to buy new ones at current market price when they can just off load some of their own that they bought at a steal and if that was the case all it will mean is more fiat money goes into the ETF as opposed to driving the demand of bitcoin up. An ETF will still be good news in the grand scheme of things though and is one more step into mainstream adoption I guess.