On the flip side of things, I would not be surprised if the 3 Sr which didn't upg their nodes were not even aware of what's going on and perhaps only in for the financial gains and could not have been bothered with upgs. Even though ethically it was wrong for @justinsunsteemit to do it, however like it could have been concented by all the SR to make the move even though the implications from the PR stand point would have been disasterous. But I guess only the guys within Tron's chain would have known what exactly transpired
Steem witnesses are more concern of the stability of the chain and growth of the chain. Plus everything is communicated more easily within the Steem chain.. I agree with you that the optimism of Tron acquisition was taken positively by many however it has not been assured or reinforced. Let's see what comes next and keep a watchful eye on each others backs.
It was one of the hardest decision to make in my life because it hurts some of my core values and I would like to see this settled asap.