I am very surprised that you think you can make accurate comparisons through googling! But perhaps this points to a documentation problem with Yesod.

I am probably being entirely too harsh here. It is just that when you call something "elaborate" that is not an objective statement taken from the docs. You were probably trying to phrase things in an objective way, but I think every developer views "elaborate" as having a very bad connotation.

I also disagree with the Sinatra vs. Rails comparison for various reasons, but I don't want to spend time arguing analogies.