This baby showed up to learn and develop, whereas this pup just wants attention.
We get it; you're a dog who can say "mama." And yes, that is surprising and impressive. If this were a viral video just about a dog who can say mama, that would be wonderful. (Although it's sort of creepy when dogs make word sounds.) But this viral video is about a baby trying to become a better baby. A baby who wants to speak, is putting in the effort, and is studying the syllables that his mother is repeating for him like an enchanting spell: "ma ma ma ma ma ma." And he almost has it. It's on the tip of his tongue. He wants to speak and he thinks he knows how. If only there weren't a dog barking "mama" in his ear.
I understand how it escalates to this:
"Let...me...speak!" — what the baby would say, if he could talk. (via YouTube)
You got this, kid. Don't worry about the dog. Just keep working hard and you'll get there, too, when the time is right.