I think that the Bitcoin Bank may be good for newbie users, cause nowadays is easy to forgot your password, lost backup file etc.
(inconsequence lost ur money)
In the bank u can forget everything but u always can recoup things which belong to you. Here you must take care more about yourself, so for many it can be uncomfortable in my opinion.
But BTC destiny is to be decentralized(as everywhere is describe), BTC has a lot of advantages but also some disadvantages (like these listed). And it's your choice what is more important for you or what you do need more.
It is also the newbies that fall for scam sites, it's also the newbies that end up with coins stores on "online wallets" that tend t get "hacked" and you are not going to see your money anymore.
The numbers of accidents where you lose your privatekeys and your back-up pales in comparison with the numbers of people that lost their coins while having them on a walk in some online wallet.Should we add to things like inputs.io the exchanges that went bust? gox, mintpal, and not btc-e?
If you can't store your money or coins properly then how do you not die of hunger with a hamburger in front of you?