Overall I think the focus with clean syntax/DSLs 
    in Ruby projects with pervasive metaprogramming 
    is one of the reasons the code is so hard to maintain.

I don't have any opinion on Hanami and don't want to bring any negativity to the Hanami 2.0 party. Congrats to the team on this release!

However, in general, I wholeheartedly agree with your statement. Sometimes Ruby frameworks get way too cute with the metaprogramming.