I find it difficult to understand people who say that it physically hurt them to be away from their children. I couldn't wait for my first night out after I had given birth to my first. She was 12 days old, 12 veeeryy looong ays and nights (and i was still in a wheelchair) but I was out of that door before the nanny had a chance to get in. We went to the park, watched a movie, had dinner and was away for about 6 hours. I loved it.
The nanny was pleasantly surprised I had not called once, she said "not the neurotic type then, are you?". DD was absolutely fine.
I went back to work 4 weeks later out of choice, DD was 6 hours a day with a loving, caring person and I pursued the career I had so hard worked for. Did the same when DS came along and have no regrets. Plus a great relationship with my children and confidence in my self because I did what was right FOR ME AND MY FAMILY.
DH was back to work a week after kids were born. No one questioned him.
As for parents spending time with their newborn, depends on the situation. Is the parent maybe working from home? Studying?
When my SIL had her twins there were in the house a 3yo and a 20 motnh old to look after. So she bought two battery operated swings for the twins, fed them and put them back there to sleep. Sometimes they'd on the floor on their own looking at their hands. So, no, there was no time with a loving parent to "lavish" them in attention and play "this little piggie"with them. They looked absolutely content. I wasn't critical or "saddened". She did what she had to do, what she and her DH thought best for their family. The children were safe and happy.
So, YABU OP, don't feel sorry for this little baby, he/she probably has a set of loving parents who are confident enough in their parenting to allow a trained professional look after their child while they keep a roof over their heads/ choose to work because they enjoy it.