As the former CTO of that company, I really doubt this. When I was there, the app was built on Django, and I left some pretty competent people behind, so I'm quite sure they wouldn't have made a mistake so rudimentary.
However, I don't know what happened after I left, so there might have been some dubious decisions.
However, I don't know what happened after I left, so there might have been some dubious decisions.