It's not that many people don't pay attention, but most people still think that a team like Atletico Madrid is still mentally inferior when competing in the Champions League because there are many teams that have the mentality to win the Champions League. In addition, Atletico Madrid will also face Real Madrid, who are generally still strong in the Champions League every season, so this will still be a serious obstacle for Atletico Madrid this season.
Even though I will have to agree with you on some points you made about athletico Madrid but the thing is individual football club play pattern changes as seasons goes by, another thing is, some teams have season that are very good for them as such, things they weren't able to achieve before seems easy for them in some season, this things happens, you'll agree with me that Athletico madrid has been a very impressive team this season and I think they are a very big threat to many teams currently including Realmadrid, though Realmadrid is a very good side when it comes to the UEFA champions league but the truth is that, i dont see Real Madrid finding it very easy to win Athletico Madrid, personally am saying this because many things have really change about Athletico Madrid, they got the moral, the courage, confidence and the stamina to battle any team this time, so I don't think they should be joked with.