If you don;t have enough bitcoin to justify buying a hardware wallet like trezor then you are probabaly ok to store your coins in a more convinent place like blockchain.info. Yea the security is not as good(even though its preety good for a website) but security measures you take should be proportional to the amount you want to store.
Yes. Without much bitcoin then it does not justify investing into a wallet like this.
Those that have more than what this wallet is worth are the ones who should be contemplating if they should purchase this one or the other alternatives.
Which ever one fits their needs really is the one they should choose in getting.