The comment in question was "stay safe homies nazis are about". Telling employees to stay safe is absolutely related to company business. Not having employees be killed by Nazis is absolutely an important part of product initiatives.
I'm talking about the conversations linked in the Engadget article.
Though by that ludicrous logic you can say anything is company business. Saving an employees morality is absolutely important to a company from a Christians prospective. So is preventing them from dying, so surely you're okay with people harassing you at work about skydiving or rock climbing or drug use?
What impact does an employee’s “morality” have on the business, from a Christian perspective? I don’t actually believe there’s a cogent argument that e.g. premarital sex makes someone less effective at their job.