Your two examples are not equivalent. For the Mojolicious app to do the same thing you're doing in the Dancer 2 app, it would look like this:

#!/usr/bin/env perl

use Mojolicious::Lite -signatures;

get '/hello/:name' => sub ($c) {
  $c->render(text => 'Why, hello there ' . $c->param('name'));
};

app->start;
[download]

Spruced up to provide the same functionality as the Dancer 2 app, the code looks substantially similar. The two frameworks do have many useful differences. But at the heart of it they're both lightweight web frameworks, and both are quite capable. I prefer Mojolicious too, but some of that is due to familiarity and having used it in production a number of times. I've heard people whine about the Mojolicious framework coming with "too much stuff." I disagree with this premise; it comes complete, and useful, and still in a tarball under 800KB.