Maybe they now feel less important or proud. Whatever the case, it's not up to you to police this commenter's thoughts. Why did you decide to take time and energy to post a dictionary definition in attempt to do so? This just feels almost completely patronizing.
>humble ˈhʌmb(ə)l verb past tense: humbled; past participle: humbled
cause (someone) to feel less important or proud. "he was humbled by his many ordeals"
decisively defeat (a sporting opponent previously thought to be superior). "Wales were humbled at Cardiff Arms Park by Romania