Trump tries to claim he ended the two panels because he wanted to do the CEOs a favor.  More like he didn't want to look like a complete loser when they all walked away.  I doubt he'd even admit it to himself.
Trump's biggest stumbling block to being President is his own fat mouth and hot head.  He ran as a man who wasn't a politician.  The problem is he won and now finding just how far he is out of his league for having no political experience.  I'll bet if I search back far enough I can probably find a comment where I stated Trump'll jump on political landmines Hillary would have sidestepped.
Trump also rationalized his conduct over the last few days as trying to not make rash decisions and not just make political statements.  But that's exactly what Trump has been doing since day one on just about every other issue.  In fact, that's what he touted as one of his biggest strengths when campaigning.  Why the sudden desire to slam on the brakes when it comes to white supremacy?