......that video clearly has a Spainard guy talking (im from Latin America, specifically Chile, and i can tell the difference between a spainard speaking spanish, and a latin american speaking spanish, wheter be mexican, chilean, argentinian, colombian, etc).
Here's an example of
Spainard Spanish and
Latin American Spanish (specifically from Mexico).
Spainards are to Latin Americans what the British (and Australians and/or other non-american countries where English is the main language) are to the North Americans (wheter be United States or Canada), they are not the same.
Oh and Dragon Ball is also a big deal in Spain as far as im concerned (not sure if it is as big as Latin America, but it still has a big following there) so it's completely feasible that Goku is a big deal there too (US actually jumped quite late to the DB ride, a lot of countries already watched the show from the beginning back in the 90's while US barely started watching DBZ in the early 2000's) .
Proof of this is the fact that in the poll
Rosalina,
Robin and
Duck Hunt are named
Estella,
Daraen and
Duo Duck Hunt (a literal translation of Duck Hunt Duo which is the EUROPEAN ENGLISH name of Duck Hunt), all of the characters in the Latin American version of SSB4 retain their American English names (expect for Zero Suit Samus and Wii Fit Trainer which are named "Samus Zero" and "Entrenador(a) de Wii Fit" in both the Latin American and Spainard versions of the game) If you don't belive me click the links that will direct you to the Latin American site of SSB4 and Spainard site of SSB4 respectively.
TL;DR This is not a Latin American Poll, it's a Spainard poll, don't get them confused.
Sorry if i sound rude and if get too off topic by the way.