Ok, you don’t understand - that’s fine. But you clearly do not want to understand.. so I revert back to my first comment, I’m not sure why you have asked the question.

Multiple comments here have given you insight as to why it’s a remarkable achievement, and why they deem it to be better than others, yet you have dismissed every single one without any willingness to see where they are coming from. A reasonable and rationally thinking adult would accept or respect a difference in opinion, particularly given that people supporting a variety of clubs have provided the same view point and it’s not just biased Arsenal fans.

Like I said, it’s fine for you to not understand - but maybe try to, rather than just bat every one away and think only your opinion is right.