Of course. We have seen it with the gold price post ETF as well as Monero post Binance listing (fractional reserves). It's easy for them to do whatever they want as long as ETFs are cash settled and they control the printing press, while the general public still sees USD as valuable. You will see prices rise when "they" want it to rise. It's the reason the Monero community celebrated the delisting on centralised exchanges. Taking a short term liquidity hit for a long term gain.