Of course there are. Some of them are even in the first page.
Let's take Non Non Biyori as an example. Yes, slice of life anime may not be as thought provoking as other genre but Non Non Biyori fulfilled its mission -- be a successful slice of life. The scenery and the characters combined together to produce the healing effect a slice of life does. It's not only one object/person that is doing all of the work which some of your reasons as to why you consider them a masterpiece imply. Along with the background music of Non Non Biyori, the anime produces an even more soothing anime which is enjoyable.
Going on your list, let's take Sword Art Online as an example. To be honest, Sword Art Online had an interesting premise but everything else ruined it. It featured Kirito who is a Gary Stu and a self-insert character. Kirito was overleveled and overpowered already early in the series compared to others. Where is the competition? He also seems to be enjoying himself even though the premise implied the story was supposed to be tragic. Partnered with several girls for Kirito's harem pleasure who don't even bring anything to the series except bland love drama that has been seen before many times already. Then it went forward with the second arc.. oh boy oh boy. This is where they defied logic. Normally you would traumatized by something tragic that happened in the past but no. They were not traumatized at all. Mind you that this continued in third season. In fact, they even created a new RPG afaik at the end despite of what happened at the first arc. There is also the siblings love quarrel on season two for additional bullshit. Sword Art Online is objectively not a masterpiece but it was a disaster. Don't even get me started on GGO.
Let's take Non Non Biyori as an example. Yes, slice of life anime may not be as thought provoking as other genre but Non Non Biyori fulfilled its mission -- be a successful slice of life. The scenery and the characters combined together to produce the healing effect a slice of life does. It's not only one object/person that is doing all of the work which some of your reasons as to why you consider them a masterpiece imply. Along with the background music of Non Non Biyori, the anime produces an even more soothing anime which is enjoyable.
Going on your list, let's take Sword Art Online as an example. To be honest, Sword Art Online had an interesting premise but everything else ruined it. It featured Kirito who is a Gary Stu and a self-insert character. Kirito was overleveled and overpowered already early in the series compared to others. Where is the competition? He also seems to be enjoying himself even though the premise implied the story was supposed to be tragic. Partnered with several girls for Kirito's harem pleasure who don't even bring anything to the series except bland love drama that has been seen before many times already. Then it went forward with the second arc.. oh boy oh boy. This is where they defied logic. Normally you would traumatized by something tragic that happened in the past but no. They were not traumatized at all. Mind you that this continued in third season. In fact, they even created a new RPG afaik at the end despite of what happened at the first arc. There is also the siblings love quarrel on season two for additional bullshit. Sword Art Online is objectively not a masterpiece but it was a disaster. Don't even get me started on GGO.