Is OpenWA safe for client-facing or business-public WhatsApp numbers?

[DavidTabacman]

I'm evaluating OpenWA to power WhatsApp messaging for real client/business numbers, and the main thing I want to understand before committing is the risk posed by the whatsapp-web.js engine.
Since whatsapp-web.js automates an unofficial WhatsApp Web session rather than going through the official Cloud API, my concern is about the ban risk: How often do numbers actually get banned in production use? Does it depend on volume, message type (bulk vs. transactional), or account age?
What do you think? Extra points if you have experienced this yourself!