I know some folks at Pivotal as well. Congrats to them! I'm a bit depressed looking through some of the comments on here. It feels like people don't understand or care what Pivotal has done and is doing and are writing it off because of the tech rather than the idea and implementation.
To sell, you need to speak the language of your target audience.
Pivotal's audience is enterprise customers, so their website is naturally filled with enterprisey messaging - high on 'outcomes' for decision makers and low on nitty gritty details.
HN's audience is not really the same (broadly speaking). A landing page that shows you how simple it is to deploy a python function into production on Pivotal Foundry would probably be a better sell here.