Bro I think a very important rule of life is don't mix business and pleasure, and SRK believes in that. Regardless of what goes on with movies and release dates, SRK is one of the strongest people in the industry, he has people he can rely on all around him.
KJo, Aditya both speak so highly of him, always respect him, it's just that when it's between SRK and the future of their production house, they have to choose the latter. I think they helped him in making Ra. One when the director was unable to do it properly.
Then there's Sallu, Farah Khan, Deepika, Anushka, Alia, and many others who are close to him. Just look at that recent photo that came out and see who's surrounded and loved and who's sitting alone.
If this comment on then being happy with him failure is because of Sultan and Simmba's release dates, then remember even in his best place SRK also clashed with Sallu and Preity's movie Jaan E Mann.