Chrome OS is an appliance and like many appliances, it's not intended to be opened, just used. The tradeoff you generally make for simplicity is control.
Sure you can buy wire and transformers, acquire cinderblocks and metal grating and make a stove that you have 100% control over. But most people don't do that, they use a pre-packaged unit built by Samsung or Maytag that does its job well with little headache.
This is no different and will revolutionize the way that computers are used.