If someone is diving down this rabbit hole, they most likely have some level of tech savvy going in. Given that, they likely can decide if the book is for them

If someone is diving down this rabbit hole, they most likely have some level of tech savvy going in. Given that, they likely can decide if the book is for them by doing some very light research on Linux distributions. With a cursory set of results in hand (which will tell me that Ubuntu is easy and Arch is a bit more advanced but not quite as advanced as Gentoo or LFS), I can decide if a very practical book that says it focuses on Arch is a book that is right for me or not. For me: I'd LOVE this book. I've been around the block, but don't know everything I know I could. Your criticism doesn't seem to have much merit when clearly there is a market for this book and clearly the potential buyer should be trusted to decide whether this book is right or not.