Tweak wording

en/development/routing.rst

@@ -1656,12 +1656,12 @@ Is equivalent to the following explicit calls::
     inconsistent URL case.
 
 .. warning::
-    Given that the fallback routes templates are quite generic, they allow mapping 
-    URLs to even non-existent controllers/actions and when reverse routing 
-    (generating URL string for URL arrays) generate invalid URLs.
-    
-    Hence it's not recommended to use fallback routes in production and
-    instead connect routes as required using the various other route builder methods.
+    Fallback route templates are very generic and allow URLs to be generated
+    and parsed for controllers & actions that do not exist. Fallback URLs can
+    also introduce ambiguity and duplication in your URLs.
+
+    As your application grows, it is recommended to move away from fallback URLs
+    and explicitly define the routes in your application.
 
 Creating Persistent URL Parameters
 ==================================