"Just trying" to get a sponsor isn't going to get you a sponsor. People who adventured around the world on their own dime, taken and written epic accounts along with high quality edits aren't getting sponsored so why would a half-baked first attempt at a park edit, of which there are thousands out there, be enough to get sponsors? The majority of edits on youtube aren't sponsor-me edits, they're just out there because people have an amateur love of snowboarding and cinematography and will spend their own money and own time doing something they never even intend to get anything back out of, let alone a contract. Some of these edits are pretty damned good no matter what scale you judge it on, too.
Look, the people riding pro for teams spent their whole lives trying to get sponsored. They sacrificed everything working a shit night job and riding every hour they could hoping to develop enough skill and style to commoditize their snowboarding into something a company can use to sell snowboard related shit. Believe me, if you were on the cusp of getting a fat contract, not having a section on SBF.com to stick your edit under wouldn't be stopping you. So what would be the point?