It's entertaining to watch but I wasn't able to finish watching. I've watched some streamed videos of Drake and he always provides entertaining gameplays by betting huge amounts. If it's for partnership purposes, I don't still see anything wrong with it. He makes money while entertaining his viewers at the same time. Stake is also a reputable gambling site so having a partnership with it is still beneficial to Drake.
Like what I previously mentioned, the fact that Stake can offer a percentage of their ownership or $$$ to Drake means that the gambling website is superbly profitable on their end. They could actually ask other artists/celebrities to partner with their gambling website in order to boost their reputation further and attract more people in the process.
As someone who has not attempted to gamble online, maybe this is the time to at least try gambling websites due to their prominence in the forum nowadays.