Yeah I guess it boils down to why people want to brew their own beer. Some probably do it because it's cheaper so I guess something like this is probably more targeted at people like that (once you've made the upfront investment of course). For me the biggest input from the brewer is in recipe creation and wort production...once you have a good recipe and the experience and ability to produce good wort then, so long as sanitisation practices are good, the yeast does the rest of the work and all the brewer can do is screw things up. So take away the recipe creation and wort production elements out of the process then you're not really brewing beer, you're just fermenting wort.
Bit like if you're into Indian cooking its the difference between making a curry from scratch, taking all the spices and toasting them, grinding them, marinating the meat etc. and making the curry properly, or just buying a jar of Patak's sauce and chucking it in a pan with some meat and saying "I've cooked a curry"...technically you have....except you haven't really.