I don't think this is a good idea as this is bad for the network and decentralization. The network needs as many people staking as possible and not just one huge pool staking everyone's coins. I never understand why people put their trust in these pools when it comes to staking as they can go down at anytime just like CoinsMarkets and people lose all their coins. Anyway its always best to try and stake your own coins even if it takes a while.
I do agree that there's a risk when doing pool staking but it also has a lot of benefits. You can stake a ton of coins without even having your computer on, the percentage reward is amazing and the staking rewards are very frequent. At the same time any website or exchange you keep your coins on can pull a mt gox, but this particular pool seems to have their shit together so I like them a lot.
Yes people do need to consider both the risk and reward when doing something like this but if 808 was on something like this, the staking would be amazing.