90+% of the good use cases for filemaker are at places with no DBA's, it's meant to be a database tool for non-technical people and small businesses. If you had DBA's they'd just want to lock it down and eliminate the remaining 10% anyway.
If a company is claiming to have the largest database in the Southern Hemisphere, they'd have in-house developers (who double as FM dbas).
I'd be interested in knowing who the company was, and the metric they used to judge their database size. I worked on one that was 4GB data and >40GB binary files (photos, documents). Interestingly, when all the data was removed and the file was optimised it came to less than 2MB.
