The popular open source projects make great targets for low-multiple acqui-hires, derisking the investment. They also have huge established branding and generally obvious opportunities for displacing existing players. In a non-zero interest rate environment, those factors make established open source projects a more appealing bet.
Since they mentioned the company, undercutting and eating the market share of DataBricks is enough to appeal to some investors.
Compare:
Funding databases is some of the most appealing for sw infra VC b/c as business fundamentals like monetization (pay for hosting, data, etc), growth, retention, are some of the most successful & low-risk
Funding the sw compute tier is a peg down but appealing for similar reasons. Basically same-but-weaker than DBs on the above dimensions, but still worth it as customers struggle w/ compute at scale (technical + business), so still works. Think early databricks vs snowflake, and how databricks grew to owning more than compute to data lakehouse, dashboards, etc: started as pure compute and now closer to snowflake.
Python is popular for a lot of these compute tier stacks. Orchestrators, AI, ETL, etc. The technical, social, & economic reasons are all interesting & relevant for why.
That's similar to anyscale (ray), coiled & saturncloud (dask), and early databricks (spark). Managing infra for that kind of thing is annoying. These companies don't OSS their cloud stack.
Wishing them luck! A lot of arrow-core compute tier & db co's emerging, so cool to see the many years paying off.
That's what I had missed - thanks.