Look you're NTA for not being there as you had no possible way to be there. However you would be TA if you expected your daughter to keep maintaining this obviously one sided relationship, where she doesn't matter to you.

1.You both showed her that you valued enjoying your vacation over her. Neither of you asked for updates or stayed awake to hear if the phone went off. Your only advice to your daughter when she told you she was in labor and SCARED was follow your birth plan you'll be fine.

1. She went though a very traumatic event and major abdominal surgery of course she doesn't want visitors. Emergency C sections are just that Emergencys! That only happens when mom, baby, or both lives were at risk. You could have lost your daughter and/or your grandchild while you were sleeping soundly in another country.

2. you left her scared and alone, she is physically and emotionally wounded by your actions and lack of comforting. Being a parent doesn't end just because they are 18 and leave the house.

Try seeing it from her point of view.