You are right that this may not be as exciting for some but I believe even if you do not care about ethereum this is still good news. Ethereum ETF has long been approved but staked ETF has not yet been until today. So, this simply means we are getting progress.
XRP ETF could also be approved soon so it is definitely a good time for altcoin investors as this might be the well anticipated altcoin season as bitcoin's price dwindles down.
Still good news indeed though the effect wouldn't be instant and that's why some people are really not feeling goosebumps about it. But with an Eth ETF and staking approval as the market progresses attraction from institutional investors could be building up just as we have today with bitcoin.
About bitcoin price dwindling, if you're referring to the recent drop in price since the $109k ATH that's just the price making some correction which is common with bitcoin price whenever a pump is experienced. And I think altcoins wouldn't be doing much if bitcoin isn't pumping. So altcoins despite this news still invariably react to whatever direction bitcoin takes at any point in time especially whenever bitcoin price dumps.