The whole article is very weird, and there is little to learn from it. Wind on till they've actually made the port, and have run it for some time and then there will be some interesting lessons learnt, gazing into my crystal ball it will be somethong like 'turned out to be harder and take longer than we thought, but the result is good'
SNOBOL4 on the other hand, was probably not considered at all.
(Although being fair, I've met some Java libs that leak memory (looking at you, Couchbase), usually via poor usage of byte buffers. But Rust doesn't let you use unsafe code constructs, so it'll be fine. I guess I need another /s now.)
You cannot sell C/Java.
Computers are now reaching the maturity lightbulbs had when they artificially limited the burn time to 1000 hours.
Personally I going back to C and JavaSE/J2ME on Rasperry 4/Pico.