Agreed in part. There are reasons there are distros, but I don’t think Op is suggesting to run LFS as a daily driver. More that they want to install it to show they can. And on that front, I’d disagree. Go for it! The book is fairly self explanatory. It does call out some choices early on with respect to package management. Stop and think at that point. Make a choice, then move forward.
Then I have misunderstood this question. You are right, if you install LFS you get to better know your system and how it works. But as a daily driver, it is really a no-go.