If I may throw in my 2 cents?

Forcing = bad idea
Encouraging = good idea

So long as that line isn't crossed, I think trying to get fair play into a mod is only a good thing. It can make for some interesting matches and cool comebacks.
But I think there's the potential to over-react to someone not playing "fair" if it's forced.
If it's merely encouraged then those who don't won't feel the urge to provoke.

Notice the quotation marks around fair.
Your definition of fair play is mind boggling at the best of times to a below average wushu player such as myself.
For me, half of the fun of wushu is coming up with hugely over exaggerated spinning openers, yet I'm told openers are bad?
The comeback thing is obvious, ofcourse.

Either way, this all boils down to no; you should never force your views on a mod onto someone else as they may have different thoughts on it
TeamWushu (and by extension fl0w, relaxall and Alpha) aren't the absolute authority on wushu and shouldn't dictate how everyone plays the mod as some seem to want to :v