Some see it as complaining while others see it as seeking a discussion towards finding viable solution in order to correct a well observed problem....and complaining that people are ungrateful.
Usually those who see something as"whining" tend to be the ones who are part of a related problem and do not want a solution to be found because they know it will require them to make personal connections to their general actions.
It's not about their GRATITUDE but their ATTITUDE. Same with who does the banning. Is it over the offender's actions or that the person, who has authority, wants to force their views on someone else because they simply can without repercussion coming back to them even if they were wrong doing it?...and threatening to ban them if they are ungrateful.
And one more concept that is not as simple of concept as you apparently wish to make it look. It's about getting everyone on the same page and defining the rules that both sides play by for the greater good of the system and players at hand. A mutual cooperation toward an agreed to and set upon goal that does not favor one side more than the other.Once we start threatening to ban people, we'll get people as "grateful" as Trumps staff...
Simply put, not all interactions in life can be distilled down to a simple binary outcome. Show a bad attitude when it's unwarranted or show a lack of gratitude for a kind and fair action and there should be some degree of ramification you receive, if the person or group dealing with you sees fit, whether it be baning you or simply the person or group no longer offering you help since you show nothing of good will in return for their actions.
It's about the continual upkeep and enforcement the unspoken laws of social interaction and to what limit offences of them go before moving into the territory of the written laws and their enforcements.
BTW, I saw no "forced gratitude" in that video. I saw people who are grateful for having the chance to work where they work on what they are doing because their jobs could have been given to someone else.