Distil never blocks Googlebot from accessing your site. Ever.
So why is Googlebot showing up in the Bad Bot report? If you dig into these known violators you'll discover something interesting about the source IP's.
Googlebot running from Amazon's infrastructure? Highly doubtful. Instead this is a scraper attempting to impersonate Googlebot from an publicly accessible Amazon hosted virtual machine. Distil detects these fake 'Googlebot' impostors and blocks them from stealing your content.