Probably not. I posted that as a general caution, in particular to be cautious (or at least aware) of the budget triggers out there.
Stock triggers and hammers have a lot of engagement surface, so even if the parts wear faster than they should, they will still last quite a while. Since most match triggers have much less engagement surface, they are much more sensetive to wear. Thus, if you're going to put a match trigger in a duty rifle, make sure you're getting one of the better ones that's been properly heat treated and engineered. As you would expect, these will cost more, but as usual, you GET more.
For myself, I would only trust the KAC and AS triggers, and I have an AS in one of my rifles. All the rest are stock (Bushmaster) parts. I don't use my ARs as benchrest rifles, though, so it really isn't any handicap for me.
-Troy