The functionality should go a step beyond. Using the Company property as a “fallback” if the email doesn’t provide a suitable domain is not necessarily desirable, either. HubSpot needs setting for users to determine how they want to company record to be generated. For us, the Company property is the only method we would use, not a fallback.
Example:
Our target prospects are real estate brokerage owners. Many of these people have email addresses supplied by their franchise. I’ll use RE/MAX as an example. The contacts’ own different, independent franchise companies with names like RE/MAX Elite, RE/MAX 1st Choice, etc. All of these companies are separate entities, but most of the owners use name@remax.net for their email address, so HubSpot matches them all to a national RE/MAX company record. We have hundreds of unrelated contacts grouped under RE/MAX, when they should each have their own company record for their brokerage.