Nah I think Nintendo needs to use real people (adults, not freaking kids though) in their commercials moreso.
The "just run a gameplay trailer for 30 seconds" doesn't sell games anymore unless you have a game with unbelievable graphics. It's not the 90s anymore, that type of advertising only appeals to niche gamers.
The N3DS spot while still being a generally awkward/mediocre commercial is at least a step in the right direction. It shows "normal, semi-attractive adults" using Nintendo products and portrays that the product isn't some kids toy. It's also on during TV shows that the mass market actually watches (Better Call Saul/Walking Dead), the best commercial in the world doesn't mean much if you air it only on shows no one watches.
That was part of what made the "Wii Would Like To Play" commercials work ... they showed normal people using the product ... adults too, not pandering to kids like the Wii U commercials did. Nintendo needs to market that way because they have a stigma against them that their products are toys, so the proper way to market themselves is to counteract that.
I'd say it is a step in the right direction after about 4 years of terrible marketing.
