The author likes Objective C and doesn't like Swift. That's fine. But he's let that emotional state override his rationality to the point that it totally colors and distorts his thinking.
None of his arguments hold together. They're all speculation based on supposition based on guesswork, and all under-laid by an almost desperate desire that this fantasy will come true, and that Apple will drop Swift. It's like listening to a broken-hearted man explain how his ex-lover will soon return to him. How this is a test that only make their love stronger in the end, etc.
Apple aren't going to drop Swift. It is the future of iOS and macOS development, and the sooner the author accepts that and moves on with his life, the better.