yes of course it is. Shopify is Rails, as are countless other companies.
The ecosystem is slowly fading away. Big industrial libs are still good, but a lot of smaller projects are abandonware, last updated in 18-19.
The cool kids moved on to Go, Rust, TS, Elixir etc.
It seems like they just had to publish couple of benchmarks and articles here and there and that could have been it.
As it has good C interop story it could have a good chance riding on AI hype wave few years later in this alternative history.
That and I’ve found that folks often aren’t very receptive to Ruby like syntaxes initially.
I really wanted to like Crystal, and used it for a few projects. But the immaturity and timing was it's kryptonite.
M:N wasn't added until late 2019 :( -- https://github.com/crystal-lang/crystal/pull/8112
Rails has been on a downward trend for the last 6 years.
[1] https://trends.google.co.in/trends/explore?cat=958&date=2017...