That I get it now! You actually can!!
It's entirely dependent however on what sort of a newborn you have. Ds1 was so much hard work that I couldn't really do anything except breastfeed and walk endlessly with him when he was awake to stop the crying.
If I'd had ds2 first I'd possibly have judged too. He sleeps without the need for endless motion or a nipple in his mouth and when he's awake he'll be happy to just be in a baby seat for about 20 minutes at a time. I can get things done. It's a revelation.
It's not down to parenting, techniques or routine. It's simply down to your baby. Although I've got it easier a second time around I will never forget how it can be and never judge a parent who is unable to get things done because of a high needs baby.