It doesn't. There are plenty of Clojure projects out there and nobody's rewriting them in other languages. There are also plenty of companies nowadays that have been using Clojure for years. The feedback from them is overwhelmingly positive.
Rewrites between languages keep happening in all kinds of permutations. I think pessimism or optimism from just headlines and announcements is more about what you read into it.
It reminds me of the “why we switched from Mongo to X” or “why we switched from Ruby to Y” trends some years ago.
I saw Clojure become popular long before it was ready for the limelight: it definitely wasn’t pragmatism driving it. It was a fetish for syntax and paradigm.