It's obviously a great decision, but these sponsorship deals are affecting the RTP in some of their in-house games which is chasing away some gamblers slowly and steadily over time.
Are you sure about it? ‘Stake Originals’ are the in-house games of Stake. There is no changes of the RTP or house-edge of those Stake originals games. However, most of the players think that the casino has increased the house edge or reduced the RTP when they loss their deposits quickly. The house edge of Stake originals games are similar like the other popular casinos in-house games.
Stake needs to find a way to solve this issue asap in order to retain their player-base since competition in the market keeps increasing rapidly.
They are doing those partnerships to advertise their platform all around the world. Which is helping them attract more players. We should remember that we can't win always in gambling. I have faced bad losing streak at Stake several times, I have similar experience at other casino too. You will have similar experience at other casino too if you play there for a long time.