Thanks for sharing your thoughts. My feelings are similar. The outcome is a big question mark, with opportunity for major growth or destruction of this platform.
However, now that I think about it, the situation is a win-win. One possibility is that Sun helps market and grow Steem without trying to convert it to a Tron dApp. The other possibility is that Sun tries to make Steem a Tron dApp and the resiliency of the decentralized system is tested. If Steem can't survive such an attack, then it's best to know sooner rather than later.