Rails effectively muddied the waters of what is possible with Ruby, leading to its neglect (in awareness at least). Rails has become synonymous with run-for-the-hills in tech (from what ive seen).
Personally having worked with Rails, it was great in the early days, now its mired in tech debt and my-way-or-build-it-yourself mentality such that I havent touched it with my disposable 10 foot pole in 7+ years.
The short answer, is flavor and fashion over effectiveness; a strong rebellion against high performance languages who require a deeper understanding than simple copypasta.
Personally having worked with Rails, it was great in the early days, now its mired in tech debt and my-way-or-build-it-yourself mentality such that I havent touched it with my disposable 10 foot pole in 7+ years.
The short answer, is flavor and fashion over effectiveness; a strong rebellion against high performance languages who require a deeper understanding than simple copypasta.
/2c