While their intent is good, choosing the term "Open Sourcing" is not very genuine here. The pitch deck is nothing stellar (it's a run-of-the-mill pitch deck that we've seen before), and showing the slides only really lends ideas to others (ie. you can't literally treat them like an open source project and just modify certain parts, you have to rebuild the entire thing from scratch, and of course YMMV).
A more appropriate title would of been "Take a look at the pitch deck we used while vying for an $865M valuation".
A more appropriate title would of been "Take a look at the pitch deck we used while vying for an $865M valuation".