If just the automated facial assessment was used to detect pain,...

If just the automated facial assessment was used to detect pain, there will be a lot more users and less question mark about the potential of the global expansion where assessor in other countries who are already trained using a different system will now have to use Painchek that don't actually save them time but cost them more money....not likely.
I think some investors wasn't aware how Painchek worked, me included as I've only recently discover this very important information.

https://www.researchgate.net/public...ion_of_a_Point-of-Care_Technological_Solution

"The user must be trained on the use of the tool and be familiar with the patient undergoing assessment. The user needs to navigate from one domain to another to complete the assessment.
Scoring: The ePAT uses a hybrid model in which the Face domain is fully automated while other domains (Domains 2–6) are questionnaire-based checklists manually completed by the assessor, using the mobile device."