IMO you vastly overestimate the corporate use case. In my experience in places where Slack was settled on as a corporate messaging solution the three questions

IMO you vastly overestimate the corporate use case. In my experience in places where Slack was settled on as a corporate messaging solution the three questions asked (in order of importance) were * "Does it support custom animated emoji"? * "Does it have website and document previews"? * "Can I send my notifications to it"? (It's silly but that's how it is.)