We must remember that Sun is a businessman, while many of the people currently on the STEEM Blocchain are heart moved and dreamers.
Sun is motivated by money, he puts money behind a project, and then owns it and its wealth.
Most of us here are here because we care about building a castle. That is why we were ok with staying when steem dipped to 0.10-0.12USD. We were here plugging away even though we were not making any $$ because we loved the idea of what we were building.
Sun doesn't have heart and emotions in this blockchain he has $$$ in his eyes.
So yes, he will ghost applications if he thinks he can make more money with others. Why would't he?