As it's written in the article "Banks are reliable alternatives because people trust them" and it's true.
For you it might be true, but that's not the case in general. Over the last 10 or so years the confidence that people have in banks has only decreased, where each time a newer low has been set. Seriously, banksters are just toying with your money on the financial market, and you have to swallow every negative consequence that might be attached to their actions. Governments in financially difficult circumstances can opt for a general haircut of x percentage of people's savings and all, just to make up for their debt. In case you think you can quickly withdraw your funds from the bank, the bank will just be an extended arm of the government, and freeze everything you have. People are sick and tired of this, and that's why Bitcoin can bring them an ultimate form of financial freedom.
I am quite sure that a lot noobs see this as great news. Point however is that as long you aren't the sole owner of your private keys, you will always rely on whatever central authority to not turn its back on you... If you are looking for a total form of freedom, avoid online wallet services, avoid leaving your coins in your exchange account, don't make use of address generation sites, etc. Sure, they offer a good amount of convenience, but I never put convenience over total control of what I hold.