>>98004137Because from a structural standpoint it's the perfect comedic comic.
If follows a four panel structure, the first sets up situation, the second is the situation playing out, the second shows others reacting to the situation, and the final panel puts us in the moment by conveying the emotion of the other person reaction.
The humour is obsured but a situation not
completely alien, and as this anon said
>>98004388 despite there being basically nothing you know what emotion the character is feeling despite having no face simply by context alone.
It is quite honestly a masterpiece of comedy.