This guy is in denial. Swift has been dropped by IBM and by Google for Tensorflow and Apple doesn't appear to be doing much to promote Swift outside of iOS and MacOS.
After leaving Apple, Chris Lattner (designer of Swift) ended up at Google for a while and there was an attempt to make Swift a first class language for Tensorflow. An interesting podcast on the topic from 2019: https://www.swiftbysundell.com/podcast/58/