As has been said by others, it's a bit overdone (at least for my tastes). Generally speaking I advise everyone to avoid blurring skin. Real skin has texture, pores, creases, gradations of color, etc. I don't know if you have PS, or if you're just working with LR (I honestly don't even know how I'd approach working with LR to retouch skin other than a healing brush) but if you do have PS or one of the free programs that can supposedly mirror many of it's features I'd suggest looking into: healing brushes and clone tool (and the many different ways/settings for both), split frequency method, inverted high pass, channel/luminosity masking, and dodge and burn (whatever method you prefer). That should cover ~90+% of what you'll encounter and once you get a hang of those techniques you'll be able to turn out a solid retouch that looks more akin to what the subject looks like, but without any blemishes and such. A proper retouch doesn't have to take 12hrs...but putting a little time into one can definitely help.