Ah I see. How do rails-first places handle performance issues, such as this template rendering issue? I'm curious to know what I could have done differently than a re-write.
I still am not convinced to use rails over Go for my needs, but I am glad you helped me get some more insight.
A second issue is that if you come from a background where everything is either explicit or obvious, you are in for a world of hurt. I've seen senior developers try to figure out where a particular method is defined by setting a breakpoint, connecting a REPL, then invoking some special methods to get Ruby to tell them the file and line for the source definition.
It is just a different way of developing, and (personally) I think the reputation is a bit cult-ish.