Cause, I think somehow people thingking the game originals from slot provider is not good enough or worry there has somethings are really different. They are more preffer with original games (while can check by hash and other) personally.
That's why they're more prefer to originals games rather than from provider.
Orignal games built by a casino and it is built with resources from that casino from original ideas, resources to build it, test it, secure it and more. If an original game is built successfully and security is good for the casino, it will be time for waiting response and adoption from their users. Original games if succeed, would result in very considerable success by being unique games.
As far as I know, gamblers prefer casinos that have their own games. They believe that those casinos have invested a lot of money to develop those in-house games. So, it’s not like they have created a platform, added some games and they are justt waiing to recieve some money, then pull the plug.
I think you misunderstood ryzaadit, as I see he did not mentioned about "pull the plug" in his post. Ryzaadit only wrote about possible positive effect and success from orignal games.