Thats for sure. Watch the film with a woman who has had a child, especially the scene where Monica abandons David. My wife can't bear to watch it, its waaaay too much emotionally. (Mothers losing their children or possibly losing their children is a them, of course, that Spielberg explored in both CE3K and E.T.)
I think another reason why people didn't like this film is that it ultimately sends you out of the theatre in a sad emotional state. Audiences don't like that.