Totally agree. We are working on a deal right now that needs this for data display as well. Users don’t like to have to click, they like to see it when they open a company record. With iFrame we would have formatting options and fit all the information on the screen.
This is where Saleforce still has a huge edge, not only do you have control over the look & feel but also you can have it in the main panel and not just in a side panel. So a lot more flexibility.
Hopefully HubSpot will listen and consider at least expanding to Sales Navigator like functionality (iFrame) to be more competitive when trying to accomodate a Salesforce account ready to make the transition.