The attack on XRP is an attack to all. This is why some other altcoin as are dumping as well because they knew, they could also be sued the same way as SEC did to Ripple.
Now that SEC saw what could happen to prices, they will be doing this to all altcoins they possibly can.
Why now is just interesting because XRP had been awhile and are being listed just about anywhere.
XRP is not a cryptocurrency, and no other altcoins will recover from the small shock.
XRP is the biggest scam in digital currency history and anyone halfway serious about cryptos understands this.