It's good to have options. I guess this is similar effort as Swift's java interop - created to enable internal Apple needs and a cool feature to share on socials for engagement. I don't think any of this would attract people who aren't already forced to use Swift. Generally, Apple's open source/public efforts feel more like a thing they do so they can point at this during antitrust/gatekeeper lawsuits than actual healthy foss ecosystem. (which is not a surprise of course, Apple is the opposite of foss).