Was my dad right to fault us for not visiting our mother before she passed away?

My siblings and I haven’t seen our mother in a long time. I haven’t seen her in two years, my brother, eight years and my older sister, ten years. I know my older sister and mom had a dispute ten years ago and hasn’t seen mom since. My brother hasn’t seen her in years and he couldn’t get the time off. I went to see her two years ago. Our father has been telling us to go see our mother. I wanted to go see her this past summer but couldn’t. My brother couldn’t take the time off and my older sister refused. So none of use went to see her. My brother and I are the only ones that speak to her. Two weeks ago she passed away. She had pancreatic cancer stage four. We all regretted not seeing her. We should of. We found out three before she died and we and my dad hugged tight. I begged our sister to come see mom but she refused but she being so stuck up.
Our dad said we should have gone to see her and my brother and I could have went to see her without our sister but instead we didn’t go. He said, “I told you guys to go see her SO MANY TIMES but you guys didn’t do that. That’s on you guys for not seeing her. You waited until it was too late and you have to live with that. I don’t mean to be harsh but I keep telling you, you don’t know when the last time you’re going to see your loved ones.”
We already feel bad enough as it is. I know what Dad said it’s the truth but he made us feel worse. We did call mom before she passed. Video chatted with her.

Was my dad right to fault us for not visiting our mother before she passed away?
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