You may notice that your Canary Console has a strange, random looking domain like: https://3057bef9a.canary.tools/
We already know your company domain, so why don't we use that?
The short answer: it's a tiny additional security measure.
The (slightly) longer answer: We don't want potential attackers easily discovering your Console or enumerating our customers by brute-forcing customer names. A generated hash instead of your name prevents this minor (largely unnecessary) information leak.