Samir
Explorer
Sadly your DM is right. It's not moving away unless its distance is increasing from you.I play with multiple dm's in home campaigns and LFR at a hobby shop. None do the moving away. The fighters don't help due to slow movement and they stop at the first opponent they see rather than move on. I have tried the overwhelming strike ideas but without help that won't get the dm to bite. Heck I have done 70+ damage with two hits in a row and not had the enemy move away. I guess I am controlling my target by not having it attack someone else but I find it too much. Another problem I run into is dm interpretation of moving away. They like to say that a shift where the opponent stays one square away but goes sideways does not count as away.
x= open space, o= opponent, and m= me
xox
xmx
oxx
xmx is not considered moving away because it is only one square. I disagree repeatedly but to no avail.
Back on topic, I'm still not seeing "bonuses from the same source do not stack" anywhere, which is problematic. RAI, I'm sure Censure of Pursuit is not supposed to stack with itself, but RAW it will if bonuses from the same source stack.