Why waste all this money and time designing something that is great the way it is? Give a cow some land, feed it some grass, wait a few months, kill the cow and now you have real beef. Nature intended it to be this way.
Nature also intended humans to use intelligence when sharing thoughts with others. If you bother to dig a little deeper than your mindless appetite for cheeseburgers and attempted internet wit, perhaps you'll discover the answer to your own question.
Do you really believe our body's are going to process 'fake meat' as 'real meat'? I am highly skeptical of that aspect as well. Furthermore, you have taken the very natural element of food out of the picture by growing meat in a lab, this is a very primal element that technology has forgotten.
Plus food is not complicated. Humans have made it complicated over the last 50-60 years. Food has been a basic necessity of life, yet most struggle with every aspect related to food, from acquiring it to cooking it.
Don't get me wrong I see this type of innovation has being very important to long-term space travel or planet colonization but for everyday human consumption I view this as a waste of time and energy.