I read the website. Seems to me they are offering platform as a...

I read the website. Seems to me they are offering platform as a service - ie: hardware integrated with software.

Much harder to hack the security of a system when the security is embedded at the hardware layer and not limited to the software layer.

Google is your friend. Have a read of the worst hacks of 2016 and 2017 and you'll see for yourself most hacks are attributed to software deficiencies.

The industry term for what I'm describing is PAAS fyi - not "cloud" or SAAS.