Rails is flexible too. Everything that you mentioned here can also have the sample flexibility in Rails: You can use Arel and skip AR, you can use Plex instead of HTML and so on.

The Rails Way is a response to people changing too much Rails and making it super custom.

In the last 4 years alone I touched codebases ranging from Rails Way to Rails and everything dry.rb, to Rails and Grape and Sorbet, to Rails and service objects everywhere and a lot more combinations.