I will openly admit I'm not into babies. I love both my girls but I would have been happy for them to come out toddlers. As my DD1 gets older, I enjoy her more and more as she becomes a person who can interact and contribute. Babies are kind of boring and needy blobs to me, sorry! I think DD2 is cute and I know I am a good Mum to her, I am happy to meet her needs always as required but I can't wait till she hits about 18 months lol. Some people just aren't baby people, I never felt clucky or sad once DD1 left babyhood for toddler town and I'm almost 100% sure I won't with DD2 either although she is our last. I don't think there is anything wrong with that really, I make the most of my bubs but give me a child any day! I don't think it was related to their sleep although my DD1 only started sleeping through a month or so before DD2 arrived but I started to enjoy her the most around when she started walking and that seems to grow daily so long before that worked itself out.
I could have written that post myself - and I have good sleepers and very easy babies so is not a sleep deprivation thing - I am just not into babies, I can't wait for DS to be DD's age. I love him, and I do enjoy him but I have never thought oh is sad to see my baby go. Some people are really into babies, some are not so I think you are totally normal. We are not having any more, I had previously thought that if money was no issue I would love more than two but now think even if we had a lot of money I would not want anymore because I don't love the baby phase, if they could come out at 2 years old I think I would think differently. People will say some of the comments you mention just for something to say, or because they think it is expected so don't worry about it everyone is different. Pre-children I was never clucky at all, I wanted to have children and having a baby was the way to achieve that. I do my very best for them when they are babies but I feel it comes more naturally with them as toddlers.