They need to sustain themselves and do that with something that facebook could not copy.
While OQ is way cheaper, it also forces you into using facebook accounts and you pay with your personal or even worse, with your company information, that is way more valuable than the cost of the simula.
A surveillance device with two cameras and microphone and eye tracking of your workers is something unacceptable for lots of companies.
The price is OK if they manage to offer something that improves productivity and make companies money. Juts a month of paying an engineer is way more than this price.