I wouldn't say "extremely hostile", more "unbothered" that their licensing conditions don't suit open source projects. They have tried to open things up a bit,

I wouldn't say "extremely hostile", more "unbothered" that their licensing conditions don't suit open source projects. They have tried to open things up a bit, but only for VST3 not the obsolete-in-their-opinion-but-not-anyone-elses VST2 SDK.