Didn’t Pulumi accelerate its adoption by the use of Hashicorp terraform providers? Didn’t AWS use elastic search for free then fork when the license changed? I think there are a lot of challenges around building a sustainable business around OSS that requires a more delicate look than the black or white hot takes around here recently.
…with that being said, I will say that I welcome companies like Pulumi to the IaC landscape. IaC makes a lot of sense conceptually, but unlike a lot of HN (from my perspective), I strongly dislike terraform and HCL and most Hashicorp products. There’s also enough of an impedance mismatch between TF and cloud providers that I’d be poised to just use cloud formation or ARM or something native over tf, which was never cloud agnostic anyway like their marketing claims.