If minor shirk is the worst type of major sin, why does it go unnoticed?

Maybe it's because we don't give much attention to studying Tawheed, or maybe we do study Tawheed but we don't study it as it should be studied, or maybe we do study it as it should be studied but only theoretically, without applying it in our lives. But how can that be when our primary existence is to merely establish and realise Tawheed? Know ya Muslim, that it is not possible to have a strong grasp of Tawheed unless you have a strong grasp of its opposite -> SHIRK, and this is what I want to draw your attention to in this post. I came across a clip of someone giving a reminder inside a masjid. Then, at some point an incident occurred where a statement of minor shirk was uttered to the speaker inaudibly, but rather than clarify the mistake and leave it at that, the brother uncunningly goes on to convey the statement to everyone in attendance. I posted a comment under the clip some days back to bring it to the brother's attention, but the comment got deleted والله المستعان. So seeing as: - the approach of leaving a comment didn't work, - the clip is still being circulated and has accumulated 29k views thus far, - the shirk has gone unnoticed despite it taking place amongst a gathering of 'students of knowledge'... ...I felt obliged to counter this public Munkar (evil) with a public inkaar (warning), as Sheikh Uthaymeen rahimahullah said: ((المنكر إذا أعلن فيجب إنكاره علناً)) “If the evil is made public, the warning MUST also be made public.” [لقاءات الباب المفتوح، لقاء رقم(54)] Once again, the objective is not to pass down judgement on anyone (you probably won't even know who this individual is), but the objective is to simply emphasise the importance of being able to identify Shirk - so as to avoid it, just as the poet said: “I knew evil - not for evil itself - but to avoid it *** Whoever does not know evil from good will fall into it (i.e. the Evil).” ____ We will warn against this Munkar in the course of 2 days إن شاء الله Day 1 (today): set course study Day 2 (tomorrow): solution to course study _ Day 1: Reflect over the following case study and then identify the act of Shirk contained therein: brother "A" is speaking to brother "B" about brother "C" who is elsewhere at this point in time. All of a sudden midway through the conversation brother "C" phones brother "A" about a personal matter, but brother "A" interjects informing him that he and brother "B" were just talking about him prior to his phone call. Brother "B" overhears the conversation and says, brother "C" is going to live a long life. [end of case study] To be continued إن شاء الله...