I'll answer this in earnest, assuming you're asking in good faith.
The president commands an enormous amount of power, and has an army of people who will do his bidding and simply adopt his opinions on any number of subjects. Shouting out to millions of his followers to state that the CEO of a private company is "CONFLICTED" and must resign is, by any definition, propaganda. Propaganda that changes the minds of the citizens of the country, riles up the base, and does nothing productive except to stoke anger and fear.
Working privately with this CEO, having a professional discussion with him, investigating the facts, determining that the best course of action for national security would be for him to step down, and maybe even putting some political pressure on that person to do so, and then publicly announcing the facts of what happened, is responsible governance.
It's genuinely an enormous difference.