The headline seems a bit misleading... he didn't actually apologize for the cartoon, but for the fact that some were "offended" and misunderstood his stated goals for the presentation (showing off VR and the partnership with Red Cross).
In other words, a classic non-apology. The issue is that people did understand the true goal of the presentation: self-promotion.
In other words, a classic non-apology. The issue is that people did understand the true goal of the presentation: self-promotion.