The guy behind the language - Sylvan Clebsch - seems to have a very solid background, and current professional situation. He works at "Microsoft Research Cambridge" in the Programming Language Principles group.

Read the "Early History of Pony":

https://www.ponylang.io/blog/2017/05/an-early-history-of-pon...

My point is - sure, it doesn't have a handful of massive companies stewarding it like Rust. But, on the other hand, it's made by a guy with really serious chops, who has a solid programming language related job. So while not being as industry-sanctified as Rust, or Java, it seems nonetheless like a language that could go places!