Peirce first won the hearts of the crypto-community with her ‘statement of dissent’, following yet another denied Winklevoss ETF application.
https://bitcoinist.com/sec-peirce-bitcoin-etf-possible/
All that she is saying is that such ETF is possible.
I still find it hard to believe that it would be approved any time soon, to be honest. And it's obviously not up to her alone to decide whether or not a bitcoin ETF is able to be released into the market.
Personally, I couldn't care less about an ETF approval, because honestly it won't affect any actual bitcoin users in a positive way. It's going to be targeting institutional investors who have large sums of money that they want to trade with, potentially even leading to manipulation. But as to on-chain activity, there won't be any effects resulting from ETFs, even if they were approved.