For users of their security-sensitive internal software?

> And, honestly, telling your employees to run a browser that only techies have heard of sounds like a really dumb idea.

Sounds like they're using this for internal tools, as a kind of thin-client layer. They could recommend or mandate a particular browser, and people would just use it. ("Click this icon, and a window opens with our internal tool. It's pretty much the same as any other browser, as far as you care.")