I think this is the first time three exchanges listed staked token on their platform, granted they wanted to do that to capitalize on the opportunity to increases their Solana holding/volume, CMIIW. It will definitely give some hype for Solana ecosystem, although I don't think it will be enough to protect Solana from being affected by BTC when the market decide we enter the bear market. I think the winner of this move is definitely big players, not retail traders.