My take on rushing is - it has got to be a strategy used in 1 out of 4 online games, at most! For the record - this is Skirmish Online mode we are talking about here, not MMORTS.
So yeah - casual rushing only. You might call it a radical solution, but, DoF is putting alot of emphasis on huge strongholds, thousands of units on screeen epic battles, naval combat, sieges. Now rushing, really cuts all of this as well as 80% of other content.
Why would developed bother adding all that content in, things like magic, heroes e.t.c. If most players would only build 2-3 buildings instead of a stronghold, use 20 units of one type, instead of army of 1000 mixed from 12 units types.
But don`t get me wrong - we are pushing for immediate combat action the second the game starts. Player would have good number of combat units pre-placed, allowing him to start fighting over resources or chock-points right away, or go around and creep hunting. And with-in 3 minutes player can build up to level 1 stronghold and start continuously pumping up his units.