That was a bit of a panic run, technically we still base on Bitcoin prices so the diversification has stabilized for now.
As long as the sales pitch is don't worry we wont blow up else our lingua franca is in flux and it becomes we have to change the coin we base other coins upon.

(That said owning a bit of each currency is a good hedge)
As long as poloniex doesn't run with the coins or whatever online exchange your using since syncing .... 30 or so wallets and blockchains to your PC is hellish.