Now that we know it's to 'accelerate the Kip Online' development...

Now that we know it's to 'accelerate the Kip Online' development can I ask a question: what is so special / expensive about this option that requires such heavy investment? I ask in the context of other alternatives, which for companies, while not free, are a good (great?) paid option to having to 'in house' the development of such resources themselves.

For example, Zoom, Google Hangouts, Facebook Messenger for Kids (pairing with a parents account for security / oversight) etc could all be licensed by the company in order to deliver online lessons. The benefits are obvious, but the biggest being that they are platform agnostic, don't require in-house maintenance and development spend and can be scaled up and down at will. I know that for KME, buying these licences would represent a cost, but would it really be more than a small company like this one attempting to build its own proprietary technology portal?

Please feel free to point out why I'm wrong here